{"id":89210,"date":"2024-12-25T14:23:16","date_gmt":"2024-12-25T14:23:16","guid":{"rendered":"https:\/\/staging.devsdata.com\/?p=89210"},"modified":"2024-09-19T10:52:33","modified_gmt":"2024-09-19T10:52:33","slug":"anstalla-javascript-utvecklare","status":"publish","type":"post","link":"https:\/\/staging.devsdata.com\/sv\/anstalla-javascript-utvecklare\/","title":{"rendered":"Anst\u00e4lla JavaScript-utvecklare"},"content":{"rendered":"<section>\n<h1>Anst\u00e4lla JavaScript-utvecklare<\/h1>\n<p class=\"subtitle-fake-h3\">Enkla intervjufr\u00e5gor som de flesta kandidater k\u00e4mpar med.<\/p>\n<p>\n    <style>`\n        .post-info {\n            display: flex;\n            flex-direction: row;\n            font-family: Montserrat;\n            font-style: normal;\n            font-weight: 500;\n            font-size: 16px;\n            line-height: 150%;\n            letter-spacing: 0.02em;\n            color: #6D7082;\n            \/*padding-top:32px;*\/\n        }\n\n        .info-container .post-info {\n            display: flex;\n            flex-direction: column;\n            justify-content: space-between;\n        }\n\n        .post-info-main {\n            width: 100%;\n            display: flex;\n            flex-wrap: wrap;\n            row-gap: 5px;\n            column-gap: 20px;\n            grid-template-rows: repeat(3, auto);\n            grid-template-columns: 60px max-content auto;\n            margin-bottom:12px;\n        }\n\n        .with-reviewer {\n            flex-wrap: wrap;\n            row-gap: 5px;\n        }\n\n        .author-name {\n            margin-bottom:4px;\n            grid-row-start: 2;\n            text-decoration: underline;\n            color:black !important;\n        }\n\n        .rank-math-breadcrumb {\n            margin-top:20px;\n            position: relative;\n            z-index: 1;\n        }\n\n        .rank-math-breadcrumb p {\n            margin: 0;\n            white-space: nowrap; \n            overflow: hidden;\n            text-overflow: ellipsis;\n            gap: 8px;\n            display: flex;\n        }\n\n        .rank-math-breadcrumb a {\n            color: #6d7082;\n        }\n\n        .rank-math-breadcrumb a:hover {\n            text-decoration: underline;\n            color: #0332c9;\n        }\n\n        .author-avatar {\n            display: flex;\n            justify-content: center;\n            margin-right: 15px;\n            width: fit-content;\n            grid-row-start: span 2;\n            grid-row-end: 4;\n        }\n\n        .author-avatar picture {\n            display: flex;\n            justify-content: center;\n            align-items: center;\n        }\n\n        .author-avatar.clicked {\n            transform: scale(1.1);\n        }\n\n        .post-info .author-avatar img {\n            min-width:44px;\n            height: 44px;\n            width: auto;\n            object-fit: cover;\n            aspect-ratio: 1\/1;\n            filter: grayscale(1);\n            border-radius: 100%;\n            position: relative;\n            top: 2px;\n        }\n\n        .post-info .author_socials {\n            display: flex;\n            flex-direction: row;\n            align-items: center;\n            grid-row-start: 3;\n            grid-column: span 2;\n            gap: 15px;\n            list-style-type: none;\n            padding: 0;\n            margin: 0;\n        }\n\n        .post-info .author_socials li a {\n            display: flex;\n            align-item: center;\n            text-decoration: none;\n        }\n\n        .author_socials a svg {\n            width: 16px;\n            height: 16px;\n            transition: 0.3s;\n            color: #000;\n        }\n      \n        .author_socials li:hover svg {\n            color: #0332c9;\n        }\n\n        .right-info a {\n            width: fit-content;\n            color: unset;\n        }\n\n        .right-info a:hover {\n            text-decoration: underline;\n        }\n\n        .post-info .clock {\n            position: relative;\n            padding-right: 5px;\n            top: 2px;\n        }\n\n        .post-info .arrow {\n            position: relative;\n            margin-left: 10px;\n            margin-right: 10px;\n            transition: .2s;\n            height: 6px;\n            bottom: 1px;\n        }\n        .post-info .post-info-separator {\n            padding-right: 3px;\n            padding-left: 3px;\n        }\n\n        .reviewer-info {\n            display: flex;\n            flex-direction:column;\n            justify-content: center;\n            align-items: flex-start;\n            grid-row-start: 2;\n            align-self: start;\n            justify-self: end;\n            font-family: \"Montserrat\", arial;\n            color: #000;\n        }\n\n        .reviewer-info.the_first_row {\n            justify-self: start;\n            grid-row-start: 1;\n            grid-column: span 3;\n        }\n\n        .meta-checkmark {\n            width: 20px;\n            height: auto;\n        }\n\n        .reviewer-info a {\n            margin-left: 0;\n            color: #000;\n            text-decoration: underline;\n        }\n        .reviewer-info a:hover {\n            color: #0332c9;\n        }\n        .reviewer-info a:visited {\n            color: #551a8b;\n        }\n        .reviewer-info a:active {\n            color: #0332c9;\n        }\n        .language-dropdown-container {\n            display: inline-block;\n            width: 200px;\n        }\n\n        .language_switcher {\n            display: inline-flex;\n            align-items: center;\n            flex-direction: row;\n            gap: 5px;\n            vertical-align: middle;\n        }\n        \n        .language_switcher .wpml-ls-legacy-dropdown {\n            width: auto;\n            position: relative;\n            vertical-align: middle;\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown ul {\n            list-style: none;\n            padding: 0;\n            margin: 0;\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown .wpml-ls-current-language {\n            position: relative;\n            margin-bottom:0;\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown .wpml-ls-current-language > a {\n            padding-left:16px !important;\n            display: flex;\n            align-items: center;\n            justify-content: space-between;\n            width: 100%;\n            box-sizing: border-box;\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown .wpml-ls-sub-menu {\n            display: none;\n            position: absolute;\n            z-index: 10;\n            top: 100%;\n            left: 0;\n            width: 100%;\n            margin: 0;\n            background-color: rgb(238, 238, 238);\n            border-radius: 0 0 8px 8px;\n            overflow: hidden;\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown .wpml-ls-sub-menu li {\n            display: block;\n            width: 100%;\n            margin-bottom:0;\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown .wpml-ls-sub-menu li:hover {\n            background-color:rgba(204, 204, 211) !important\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown .wpml-ls-sub-menu a {\n            display: block;\n            width: 100%;\n            padding: 8px 15px 8px 16px;\n            margin-left: 0;\n            box-sizing: border-box;\n            white-space: nowrap;\n            text-align: left;\n        }\n\n        @media (hover: hover) {\n            .language_switcher .wpml-ls-legacy-dropdown .wpml-ls-current-language:hover > .wpml-ls-sub-menu {\n                display: block;\n            }\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown .wpml-ls-current-language.wpml-dropdown-open > .wpml-ls-sub-menu {\n            display: block;\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown .wpml-ls-current-language.wpml-dropdown-open > a.wpml-ls-item-toggle:after {\n            transform: scale(.7) rotate(180deg);\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown .wpml-ls-current-language.wpml-dropdown-open > .wpml-ls-item-toggle {\n            border-radius: 8px 8px 0 0;\n            background-color: rgba(204, 204, 211);\n        }\n\n        .wpml-ls-legacy-dropdown a:focus {\n            background-color: #FFFFFF;\n        }\n\n        .language_switcher .wpml-ls-legacy-dropdown a:visited {\n            color: #000000 !important;\n        }\n\n        .wpml-ls-legacy-dropdown a.wpml-ls-item-toggle:after {\n            content: \"\";\n            display: inline-block;\n            transform: scale(.7);\n            height: 20px;\n            width: 20px;\n            background: url(\"\/wp-content\/uploads\/2020\/07\/Vector.png\");\n            margin-left: 5px;\n            background-repeat: no-repeat;\n   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          background-color: transparent;\n        }\n\n        .wpml-ls-sub-menu a {\n            background-color: #FFFFFF;\n        }\n\n        .wpml-ls-current-language .wpml-ls-item-toggle {\n            border-radius: 8px;\n        }\n\n        @media (hover: hover) {\n            .wpml-ls-current-language:hover .wpml-ls-sub-menu a {\n                background-color: rgb(238, 238, 238) !important;\n            }\n\n            .wpml-ls-current-language .wpml-ls-sub-menu a:hover,\n            a.wpml-ls-item-toggle:hover:after {\n                background-color: rgba(204, 204, 211) !important;\n            }\n\n            .wpml-ls-current-language:hover a.wpml-ls-item-toggle:after {\n                transform: scale(.7) rotate(180deg);\n            }\n\n            .wpml-ls-current-language:hover .language_switcher .wpml-ls-legacy-dropdown a {\n                background-color: rgba(109, 112, 130, 0.1);\n            }\n\n            .wpml-ls-current-language:hover .wpml-ls-item-toggle{\n                border-radius: 8px 8px 0 0;\n            }\n\n            .wpml-ls-current-language:hover .wpml-ls-item:last-child .wpml-ls-link{\n                border-radius: 0 0 8px 8px;\n            }\n        }\n\n        .wpml-ls-current-language.wpml-dropdown-open .wpml-ls-sub-menu a {\n            background-color: rgb(238, 238, 238) !important;\n        }\n\n        .wpml-ls-current-language.wpml-dropdown-open .wpml-ls-item:last-child .wpml-ls-link{\n            border-radius: 0 0 8px 8px;\n        }\n\n        ul.language-list {\n            \/*min-height: 71px;*\/\n            margin: 0;\n            overflow: hidden;\n            position: absolute;\n            display: inline-block;\n            list-style: none;\n            vertical-align: top;\n            background-color: #FFFFFF;\n            padding: 0;\n            z-index: 2;\n        }\n\n        ul.language-list.mobile {\n            border-radius: 10px;\n            border: 1px solid rgba(109, 112, 130, 0.1);\n            margin-left: 10px;\n        }\n\n        .language-list.mobile li:hover {\n            background-color: rgba(109, 112, 130, 0.1)\n        }\n\n        .language-list.mobile li:hover a {\n            color: #000000;\n        }\n\n        .dropdown-arrow {\n            display: inline-block;\n            border-radius: 50%;\n            height: 30px;\n            width: 30px;\n        }\n\n        .dropdown-arrow {\n            background-color: rgba(109, 112, 130, 0.1);\n        }\n\n        .dropdown-arrow:hover {\n            background-color: rgba(109, 112, 130, 0.3);\n        }\n\n        .dropdown-arrow.mobile,\n        .dropdown-arrow.mobile:hover {\n            background-color: unset;\n        }\n\n        .language-list li {\n            padding-left: 10px;\n            cursor: pointer;\n            display: none;\n        }\n\n        .language-list li a {\n            color: #6D7082;\n            text-decoration: none;\n        }\n\n        .language-list li:first-child {\n            display: block;\n        }\n\n        .active li {\n            display: block;\n        }\n\n        .rotated {\n            transform: rotate(180deg);\n            bottom: 2px !important;\n        }\n        .bookmark {\n            align-self: center;\n            cursor:pointer;\n            display:none;\n        }\n        \n        .article h1 + p,\n        .article h1 + p + p {\n            margin: 0;\n            margin-bottom: 0 !important;\n        }\n\n        .info-container{\n            \/*min-height:150px;*\/\n            direction: ltr;\n            display: flex;\n            flex-direction: column;\n            justify-content: space-between;\n            padding-top: 20px;\n        }\n        .tags{\n            font-family: \"Montserrat\", sans-serif;\n            display: flex;\n            flex-direction: row;\n            justify-content: flex-start;\n            flex-wrap: wrap;\n            width: 100%;\n        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!important;\n        font-weight:600;\n        }\n        @media screen and (max-width:1034px) {\n        .author_links {\n        margin-right:auto;\n        }\n        .reviewer-info {\n        width: 100%;\n        }\n        }\n        @media screen and (max-width:767px) {\n        .language_switcher {\n        display: flex;\n        margin-top: 5px;\n        }\n        }\n        @media screen and (max-width:490px) {\n        .review-lowres {\n        display:flex !important;\n        }\n        .review-highres {\n        display:none !important;\n        }\n        .author_links {\n        margin-right:36px !important;\n        } \n        }\n    <\/style>\n    <div><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/div>\n    \n    <div class=\"info-container\">\n    <div class=\"post-info with-reviewer\">\n        <div class=\"post-info-main\">\n            <div class=\"author-avatar\">\n                <picture>\n                        <source\n                            srcset=\"https:\/\/staging.devsdata.com\/wp-content\/uploads\/2024\/11\/tompotanski-new-min.webp\" type=\"image\/webp\"> \n                        <source \n                            srcset=\"https:\/\/staging.devsdata.com\/wp-content\/uploads\/2024\/11\/tompotanski-new-min.jpg\" type=\"image\/jpeg\">\n                        <img decoding=\"async\" \n                            class=\"avatar lazyload\"\n                            width=\"64\" \n                            height=\"64\"\n                            src=\"https:\/\/staging.devsdata.com\/wp-content\/uploads\/2024\/11\/tompotanski-new-min.jpg\"\n                            alt=\"avatar\"\n                            loading=\"lazy\"\n                            title=\"Tom Potanski\"\n                        >\n                <\/picture>\n            <\/div>\n            <div style=\"display:flex; flex-direction:column;margin-right:auto;\" class=\"author_links\">\n            <a href=\"\/author\/tom-potanski\/\" class=\"author-name\">Tom Potanski<\/a>\n            <ul class=\"author_socials\">\n            <li>\n                <a href=\"https:\/\/www.linkedin.com\/in\/tompotanski\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" aria-label=\"Tom Potanski on Linkedin\">\n                    <svg version=\"1.0\" fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 448 512\" aria-hidden=\"true\">\n                            <g id=\"linkedin5_layer\">\n                                <path d=\"M416 32H31.9C14.3 32 0 46.5 0 64.3v383.4C0 465.5 14.3 480 31.9 480H416c17.6 0 32-14.5 32-32.3V64.3c0-17.8-14.4-32.3-32-32.3zM135.4 416H69V202.2h66.5V416zm-33.2-243c-21.3 0-38.5-17.3-38.5-38.5S80.9 96 102.2 96c21.2 0 38.5 17.3 38.5 38.5 0 21.3-17.2 38.5-38.5 38.5zm282.1 243h-66.4V312c0-24.8-.5-56.7-34.5-56.7-34.6 0-39.9 27-39.9 54.9V416h-66.4V202.2h63.7v29.2h.9c8.9-16.8 30.6-34.5 62.9-34.5 67.2 0 79.7 44.3 79.7 101.9V416z\" data-hs-event-238572417=\"1\"><\/path>\n                            <\/g>\n                        <\/svg>\n                <\/a>\n            <\/li>\n            <li>\n                <a href=\"https:\/\/twitter.com\/tompotanski\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" aria-label=\"Tom Potanski on Twitter\">\n                    <svg viewBox=\"0 0 512 512\" class=\"scriptlesssocialsharing__icon twitter\" fill=\"currentColor\" height=\"1em\" width=\"1em\" aria-hidden=\"true\" focusable=\"false\" role=\"img\">\n                            <path d=\"M389.2 48h70.6L305.6 224.2 487 464H345L233.7 318.6 106.5 464H35.8L200.7 275.5 26.8 48H172.4L272.9 180.9 389.2 48zM364.4 421.8h39.1L151.1 88h-42L364.4 421.8z\"><\/path>\n                        <\/svg>\n                <\/a>\n            <\/li>\n            <li>\n                <a href=\"https:\/\/www.crunchbase.com\/person\/tom-potanski\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" aria-label=\"Tom Potanski on Crunchbase\">\n                    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"currentColor\" width=\"800px\" height=\"800px\" viewBox=\"0 0 24 24\" role=\"img\">\n                            <title>Crunchbase icon<\/title>\n                            <path d=\"M21.6 0H2.4A2.41 2.41 0 0 0 0 2.4v19.2A2.41 2.41 0 0 0 2.4 24h19.2a2.41 2.41 0 0 0 2.4-2.4V2.4A2.41 2.41 0 0 0 21.6 0zM7.045 14.465A2.11 2.11 0 0 0 9.84 13.42h1.66a3.69 3.69 0 1 1 0-1.75H9.84a2.11 2.11 0 1 0-2.795 2.795zm11.345.845a3.55 3.55 0 0 1-1.06.63 3.68 3.68 0 0 1-3.39-.38v.38h-1.51V5.37h1.5v4.11a3.74 3.74 0 0 1 1.8-.63H16a3.67 3.67 0 0 1 2.39 6.46zm-.223-2.766a2.104 2.104 0 1 1-4.207 0 2.104 2.104 0 0 1 4.207 0z\"\/>\n                        <\/svg>\n                <\/a>\n            <\/li><\/ul>\n            <\/div>\n            <div class=\"reviewer-info\"> \n                                                                            <span style=\"color:#6D7082;\" class=\"\">\n                Senast uppdaterad den \n                25 december 2024 \n                <span class=\"post-info-separator\">| <\/span> \n                17 min l\u00e4sa\n                <span>\n                |\n                <span class=\"language_switcher\">\n                    Spr\u00e5k:  \n                    \n<div\n\t role=\"navigation\" aria-label=\"Spr\u00e5kbytare\" class=\"wpml-ls-statics-shortcode_actions wpml-ls wpml-ls-legacy-dropdown js-wpml-ls-legacy-dropdown\">\n\t<ul>\n\t\t<li class=\"wpml-ls-slot-shortcode_actions wpml-ls-item wpml-ls-item-sv wpml-ls-current-language wpml-ls-last-item wpml-ls-item-legacy-dropdown\">\n\t\t\t<a href=\"#\" hreflang=\"\" lang=\"\" class=\"js-wpml-ls-item-toggle wpml-ls-item-toggle\" aria-current=\"page\" aria-expanded=\"false\" aria-controls=\"wpml-ls-submenu-default\" aria-label=\"Spr\u00e5kv\u00e4xlare, tryck p\u00e5 tab f\u00f6r att navigera till andra spr\u00e5k\" title=\"Byt till Svenska\">\n\t\t\t\t<span class=\"wpml-ls-native\">Svenska<\/span><\/a>\n\n\t\t\t<ul id=\"wpml-ls-submenu-default\" class=\"wpml-ls-sub-menu\">\n\t\t\t\t\n\t\t\t\t\t<li class=\"wpml-ls-slot-shortcode_actions wpml-ls-item wpml-ls-item-en wpml-ls-first-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/staging.devsdata.com\/\" hreflang=\"en\" lang=\"en\" class=\"wpml-ls-link\" aria-label=\"Byt till Engelska\" title=\"Byt till Engelska\">\n\t\t\t\t\t\t\t<span class=\"wpml-ls-display\">Engelska<\/span><\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"wpml-ls-slot-shortcode_actions wpml-ls-item wpml-ls-item-pl\">\n\t\t\t\t\t\t<a href=\"https:\/\/staging.devsdata.com\/pl\/\" hreflang=\"pl\" lang=\"pl\" class=\"wpml-ls-link\" aria-label=\"Byt till Polska\" title=\"Byt till Polska\">\n\t\t\t\t\t\t\t<span class=\"wpml-ls-display\">Polska<\/span><\/a>\n\t\t\t\t\t<\/li>\n\n\t\t\t\t\n\t\t\t\t\t<li class=\"wpml-ls-slot-shortcode_actions wpml-ls-item wpml-ls-item-de\">\n\t\t\t\t\t\t<a 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class=\"tags\"><a href=\"\/tag\/javascript\/\">JavaScript<\/a><a href=\"\/tag\/software-development\/\">Software development<\/a><a href=\"\/tag\/web-development\/\">Web development<\/a><\/div>\n    <\/div>\n    <script type=\"module\" defer>\n      document.addEventListener(\"DOMContentLoaded\", function () {\n    \/\/ Get the current path from the URL\n    const path = window.location.pathname;\n\n    \/\/ Check if it starts with \/case-studies\n        if (path.startsWith(\"\/case-studies\")) {\n        const tagsElement = document.querySelector(\".tags\");\n        if (tagsElement) {\n        tagsElement.style.marginBottom = \"0\";\n        }\n        }\n        });\n        Array.from(document.getElementsByClassName(\"separator\")).forEach(el => {\n            el.textContent = \" > \";\n        });\n\n            var wpmlToggle = document.querySelector(\".language_switcher .wpml-ls-item-toggle\");\n            if (wpmlToggle) {\n                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small\/no space between reviewer and author name, reviewer moves to the first row\n            function update_post_info_layout() {\n                const author_name_element = document.querySelector(\".author-name\");\n                const reviewer_element = document.querySelector(\".reviewer-info\");\n                const post_info_container = document.querySelector(\".post-info\");\n\n                if(reviewer_element) {\n                    let distance_next_to_author, reviewer_fits_next_to_author; \n                    if(post_info_container && author_name_element) {\n                        distance_next_to_author = post_info_container.getBoundingClientRect().right - author_name_element.getBoundingClientRect().right;\n                        reviewer_fits_next_to_author = distance_next_to_author - reviewer_element.clientWidth >= 15;\n                    }\n\n                    if(!reviewer_fits_next_to_author) {\n                        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JavaScript Developer\" title=\"\"><\/picture>\n<\/span><br \/>\nM\u00e5nga g\u00e5nger har tekniken banat v\u00e4g f\u00f6r framg\u00e5ng f\u00f6r f\u00f6retag i den moderna v\u00e4rlden. Dess p\u00e5verkan \u00e4r obestridlig. Fr\u00e5n tegel- och murbrukf\u00f6retag till digitala f\u00f6retag, alla har anpassat sig till den digitala eran (eller h\u00e5ller f\u00f6r n\u00e4rvarande p\u00e5 att g\u00f6ra det).<\/p>\n<p>Allt vi ser i det digitala perspektivet, fr\u00e5n Webbplatser och fullfj\u00e4drade webbapplikationer till mobiltelefonapplikationer och widgets som vi anv\u00e4nder dagligen, anv\u00e4nder alla ett gemensamt spr\u00e5k f\u00f6r webbutveckling som bara de skickliga och passionerade f\u00f6rst\u00e5r &#8211; det \u00e4r Javascript.<br \/>\n<\/section>\n<section>\n<h2>Vad g\u00f6r Javascript?<\/h2>\n<p>Javascript (JS) \u00e4r en typ av programmeringsspr\u00e5k som oftast anv\u00e4nds f\u00f6r webbutveckling (och p\u00e5 senare tid \u00e4ven mycket popul\u00e4rt f\u00f6r mobilutveckling samt p\u00e5 serversidan). Javascript-utveckling g\u00f6r det m\u00f6jligt f\u00f6r en webbplats att k\u00f6ra dynamiskt inneh\u00e5ll, animera bilder, styra multimedia, kommunicera med servrarna, bearbeta information och mycket mer.<\/p>\n<p>Vanligtvis arbetar en Javascript-utvecklare med frontend-delen av systemet, men det \u00e4r inte ovanligt att Javascript anv\u00e4nds f\u00f6r utveckling av backend-webbapplikationer som n\u00e4mnts ovan (s\u00e4rskilt med verktyg som Node.js, Express och PM2). P\u00e5 detta s\u00e4tt kan utvecklaren av detta programmeringsspr\u00e5k arbeta som en full stack-ingenj\u00f6r (arbeta p\u00e5 front-end, s\u00e5v\u00e4l som p\u00e5 back-end).<\/p>\n<p>Som du kan se, oavsett vilken aff\u00e4rsverksamhet du \u00e4r involverad i, kommer du troligen f\u00f6rr eller senare att st\u00f6ta p\u00e5 Javascript. Om du beh\u00f6ver anst\u00e4lla Javascript-utvecklare kommer den h\u00e4r artikeln att ge dig all grundl\u00e4ggande information.<br \/>\n<\/section>\n<style>\n    #highest-caliber .container-highest-caliber{\n        background: #ECEEF4;\n        padding-left: 56px;\n        padding-top: 64px;\n        padding-bottom: 64px;\n        padding-right: 56px;\n        position: relative;\n        display: flex;\n        margin-bottom:64px;\n        margin-top:64px;\n        background-image: url(\"\/wp-content\/uploads\/2020\/07\/highest_caliber_background.svg\");\n        background-size:cover;\n        background-repeat: no-repeat;\n        background-position: right;\n        border-radius: 8px;\n    \n    }\n    #highest-caliber .panel-header{\n        font-family: Montserrat;\n        font-style: normal;\n        font-weight: bold;\n        font-size: 24px;\n        line-height: 32px;\n        letter-spacing: 0.02em;\n        color: #000000;\n        margin-top: 0;\n        margin-bottom: 50px;\n    \n    }        \n\n    #highest-caliber .left-panel {\n        width: 60%;\n        flex-direction: column;\n        justify-content: space-between;\n        position: relative;\n        z-index: 5;\n    } \n    #highest-caliber .right-panel{\n        position: absolute;\n        right: 0;\n        bottom: 0;\n        height: 100%;\n        z-index: 1;\n    }\n    #highest-caliber .right-panel img {\n        max-width:100%;\n        max-height:100%;\n        position: relative;\n        z-index: 2;\n    }\n    @media only screen and (max-width: 768px) {\n    #highest-caliber .container-highest-caliber{\n        background-image: url(\"\/wp-content\/uploads\/2020\/07\/background-serious-about-security-2.svg\");\n    }                \n    #highest-caliber .left-panel{\n            width: 100%;\n    }\n    \n    }\n    <\/style>\n    \n    <section id=\"highest-caliber\">\n    <div class=\"container-highest-caliber\">\n        <div class=\"left-panel panel\">\n            <h2 class=\"panel-header\">DevsData provides engineers of the highest caliber<\/h2>\n            <a href=\"\/contact-us\/\" onClick=\"return false;\" >\n\n            <button class=\"button_empty contact-us-show\">Contact us<\/button>\n            <\/a>\n        <\/div>\n    <\/div>\n    <\/section>    \n    \n<section>\n<h2>Vad ska man s\u00f6ka efter n\u00e4r man anst\u00e4ller en Javascript-utvecklare?<\/h2>\n<p>Numera kan det vara sv\u00e5rt att anst\u00e4lla en v\u00e4lutbildad Javascript-utvecklare. Det finns visserligen m\u00e5nga Javascript-utvecklare med m\u00e5nga \u00e5rs erfarenhet p\u00e5 sitt CV, men det kan h\u00e4nda att det de kan erbjuda helt enkelt inte \u00e4r l\u00e4mpligt f\u00f6r att m\u00f6ta de specifika behoven i ditt projekt.<\/p>\n<p>Precis som f\u00f6r alla andra jobbtitlar kr\u00e4vs det en unik kombination av f\u00e4rdigheter, kunskap, passion, skarpsinne och attityd f\u00f6r att sticka ut fr\u00e5n m\u00e4ngden av kandidater. En rekryterande chef b\u00f6r vara utrustad med r\u00e4tt kunskap f\u00f6r att avg\u00f6ra vem som skulle passa bra f\u00f6r tj\u00e4nsten som Javascript-utvecklare, och b\u00f6r ocks\u00e5 be om \u00e5sikter fr\u00e5n andra personer i webbutvecklingsteamet.<\/p>\n<h3>Att vara uppdaterad med de senaste tekniska nyheterna<\/h3>\n<p>Det finns vissa kriterier som en potentiell Javascript-utvecklare b\u00f6r besitta. Ett brinnande intresse f\u00f6r l\u00e4rande och webbutveckling b\u00f6r definitivt finnas med p\u00e5 checklistan. Teknikbranschen \u00e4r k\u00e4nd f\u00f6r sin snabba utveckling och det \u00e4r ingen liten sak att h\u00e5lla j\u00e4mna steg med de f\u00f6r\u00e4ndringar som sker varje \u00e5r, eller till och med varje m\u00e5nad.<\/p>\n<p>Inte bara frilansande Javascript-utvecklare, utan alla ingenj\u00f6rer i allm\u00e4nhet, som ska anst\u00e4llas b\u00f6r ha ett l\u00e4rande och tillv\u00e4xtinriktat tankes\u00e4tt. R\u00e4tt kandidat b\u00f6r alltid vara p\u00e5 toppen av de tekniska nyheterna. De l\u00e4ser antingen om dessa p\u00e5 tekniska nyhetssajter\/bloggar, lyssnar p\u00e5 podcasts, tittar p\u00e5 videor och kan testa en del av den nya tekniken sj\u00e4lva.<\/p>\n<p>Fr\u00e5ga kandidaten f\u00f6r en Javascript-utvecklare om deras nya k\u00e4llor. N\u00e5gra exempel p\u00e5 Webbplatser om JavaScript-nyheter \u00e4r <a href=\"https:\/\/medium.com\/dailyjs\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">medium.com<\/a>, <a href=\"https:\/\/changelog.com\/topic\/javascript\" rel=\"noopener nofollow\" target=\"_blank\">changelog.com<\/a> och som bekant &#8211; <a href=\"https:\/\/thehackernews.com\/\" rel=\"noopener nofollow\" target=\"_blank\">hackernews<\/a>.<br \/>\n<span class=\"img-container\"><picture><source srcset=\"\/wp-content\/uploads\/2024\/07\/woman-sitting-while-operating-macbook-pro.webp\" type=\"image\/webp\" \/><source srcset=\"\/wp-content\/uploads\/2024\/07\/woman-sitting-while-operating-macbook-pro.png\" type=\"image\/png\" \/><img decoding=\"async\" class=\"lazyload\" src=\"\/wp-content\/uploads\/2024\/07\/woman-sitting-while-operating-macbook-pro.png\" alt=\"girl programming\" title=\"\"><\/picture>\n<span class=\"pic-caption\">Det kr\u00e4vs en unik kombination av f\u00e4rdigheter, kunskap, passion och attityd f\u00f6r att sticka ut i m\u00e4ngden av kandidater.<\/span><\/span><\/p>\n<div class=\"youtube-player-op\" data-id=\"3xKxSNw26ZU\"><\/div>\n<p><span class=\"pic-caption\">Det kr\u00e4vs en unik kombination av f\u00e4rdigheter, kunskap, passion och attityd f\u00f6r att sticka ut fr\u00e5n m\u00e4ngden av kandidater.<\/span><br \/>\n<\/section>\n<section>\n<h2>Fr\u00e5gor som \u00e4ven de b\u00e4sta och mest erfarna Javascript-utvecklarna kan ha sv\u00e5rt att svara p\u00e5<\/h2>\n<p>De tekniska fr\u00e5gor som du st\u00e4ller under intervjun \u00e4r lika viktiga som de tester och \u00f6vningar som den potentiella frilansande Javascript-utvecklaren f\u00e5r g\u00f6ra. Dessa fr\u00e5gor kommer att avg\u00f6ra om Javascript-utvecklaren har de egenskaper som du <a href=\"https:\/\/devsdata.com\/looking-for-programmers\/\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">letar efter<\/a>.<\/p>\n<p>Det g\u00e5r alltid att diskutera hur viktiga kunskapsfr\u00e5gor \u00e4r under intervjun eftersom svaret idag, p\u00e5 daglig basis, l\u00e4tt kan hittas p\u00e5 Google eller StackOverflow, men vi tycker verkligen att starka frilansande Javascript-utvecklare b\u00f6r ha en djup, grundl\u00e4ggande f\u00f6rst\u00e5else f\u00f6r en teknik som han\/hon anv\u00e4nder.<\/p>\n<p>Liknande saker g\u00e4ller f\u00f6r testning av probleml\u00f6sningsf\u00f6rm\u00e5ga. \u00c4ven om kunskapen om algoritmer och datastrukturer inte \u00e4r avg\u00f6rande f\u00f6r m\u00e5nga enkla projekt som vanliga webb- eller mobilappar, \u00e4r f\u00f6rm\u00e5gan att l\u00f6sa komplexa tekniska utmaningar, snabbt och korrekt, tillsammans med en bred systemf\u00f6rst\u00e5else f\u00f6r de sammankopplade elementen ett m\u00e5ste enligt v\u00e5r uppfattning.<\/p>\n<p>Med h\u00e4nsyn till ovanst\u00e5ende ska vi nu ta en titt p\u00e5 utmanande fr\u00e5gor om Javascript-utveckling. N\u00e4r du vill anst\u00e4lla en Javascript-utvecklare f\u00f6resl\u00e5r vi att du st\u00e4ller dem under en intervju f\u00f6r tj\u00e4nsten som Javascript-utvecklare f\u00f6r att ta reda p\u00e5 om en kandidat verkligen har en djup f\u00f6rst\u00e5else f\u00f6r detta programmeringsspr\u00e5k och webbutveckling.<\/p>\n<h3>Vad \u00e4r ett typiskt anv\u00e4ndningsfall f\u00f6r anonyma funktioner?<\/h3>\n<p>Anonyma funktioner kallas ocks\u00e5 pilfunktioner. Det \u00e4r en funktion utan namn. Den mest typiska anv\u00e4ndningen \u00e4r att skicka dem som ett argument till en annan funktion eller anv\u00e4ndas f\u00f6r att konstruera resultatet av en h\u00f6gre ordningsfunktion som beh\u00f6ver returnera en funktion. Om den bara anv\u00e4nds en g\u00e5ng vid ett begr\u00e4nsat antal tillf\u00e4llen kan en anonym funktion vara syntaktiskt l\u00e4ttare \u00e4n att anv\u00e4nda ett namn.<br \/>\n<style>\n    .media-mentions {\n        margin: 64px 0px;\n        padding-top: 64px;\n        padding-bottom: 64px;\n        box-shadow: 4px 24px 40px rgba(12, 22, 56, 0.1);\n        border-radius: 8px;\n    }\n    \n    .media-mentions .media-header {\n        font-family: Montserrat;\n        font-style: normal;\n        font-weight: bold;\n        font-size: 24px;\n        line-height: 32px;\n        text-align: center;\n        letter-spacing: 0.02em;\n        color: #000000;\n    }\n\n    .media-header-container h3 {\n        text-align: center;\n        font-size: 30px;\n        margin-top: 0;\n    }\n    \n    .media-mentions .media-images-container {\n        text-align: center;\n        display: flex;\n        justify-content: center;\n        align-items: center;\n        gap: 50px;\n    }\n\n    .media-mentions .media-images-container .image-element {\n        display: flex;\n        align-items: center;\n    }\n    \n    .media-mentions .media-images-container img {\n        -webkit-filter: grayscale(100%) opacity(80%);\n        filter: grayscale(100%);\n        transition: opacity 0.2s;\n    }\n\n    .media-mentions .media-images-container .image-element-airwallex img {\n        height: 20px;\n        width: auto;\n    }\n    \n    .media-mentions .media-images-container img:hover {\n        -webkit-filter: grayscale(0);\n        filter: grayscale(0);\n        opacity: 1;\n    }\n    \n    .media-mentions .media-image {\n        opacity: 0.6;\n    }\n    \n    @media only screen and (max-width: 767px) {\n        .media-header-container h3 {\n            font-size: 20px;\n        }\n        .media-mentions .media-images-container {\n            height: 64px;\n            gap: 5vw;\n        }\n        .media-mentions .media-images-container img {\n            height: auto;\n            max-width: 23vw;\n        }\n        .media-mentions .media-images-container .image-element-airwallex img {\n            height: unset;\n        }\n    }\n<\/style>\n<section class=\"media-mentions\">\n    <div class=\"media-header-container\">\n        <h3 class=\"media-header\">DevsData in the news.<\/h3>\n    <\/div>\n    <div class=\"media-images-container\">\n        <div class=\"image-element image-element-business-insider\">\n            <img loading=\"lazy\" decoding=\"async\"\n                width=\"103\"\n                height=\"32\"\n                class=\"image media-image lazyload\"\n                src=\"\/wp-content\/themes\/intentionally-blank\/assets\/img\/home\/media-mentions\/business_insider.svg\"\n                alt=\"Business Insider logo\"\n            \/>\n        <\/div>\n        <a class=\"image-element image-element-airwallex\" href=\"https:\/\/www.airwallex.com\/en-us\/blog\/how-to-expand-to-europe-tom-potanski-devsdata\" target=\"_blank\" rel=\"nofollow noreferrer noopener\">\n            <img loading=\"lazy\" decoding=\"async\"\n                width=\"232\"\n                height=\"32\"\n                class=\"image media-image lazyload\"\n                src=\"\/wp-content\/themes\/intentionally-blank\/assets\/img\/home\/media-mentions\/airwallex.svg\"\n                alt=\"Airwallex logo\"\n            \/>\n        <\/a>\n        <a class=\"image-element image-element-yahoo-finance\" href=\"https:\/\/finance.yahoo.com\/news\/big-data-trends-financial-services-123500932.html?_guc_consent_skip=1583870080\" target=\"_blank\" rel=\"nofollow noreferrer noopener\">\n             <img loading=\"lazy\" decoding=\"async\"\n                width=\"87\"\n                height=\"32\"\n                class=\"image media-image lazyload\"\n                src=\"\/wp-content\/themes\/intentionally-blank\/assets\/img\/home\/media-mentions\/yahoo_finance.svg\"\n                alt=\"Yahoo finance logo\"\n            \/>\n        <\/a>\n    <\/div>\n<\/section><\/p>\n<h3>Vad \u00e4r en generator i JS?<\/h3>\n<p>Generatorfunktioner g\u00f6r det m\u00f6jligt att definiera en iterativ algoritm genom att skriva en enda funktion vars exekvering inte \u00e4r kontinuerlig. De skrivs med hj\u00e4lp av syntaxen function*.<\/p>\n<p>N\u00e4r generatorn anropas exekverar den inte sin kod, utan returnerar en speciell typ av iterator, kallad generator. N\u00e4r ett v\u00e4rde konsumeras genom anrop av generatorns n\u00e4sta metod, exekveras Generator-funktionen tills den st\u00f6ter p\u00e5 nyckelordet yield.<\/p>\n<p>Funktionen kan anropas s\u00e5 m\u00e5nga g\u00e5nger som \u00f6nskas och returnerar en ny generator varje g\u00e5ng. Varje generator f\u00e5r bara itereras en g\u00e5ng.<\/p>\n<h3>\u00c4r JavaScript ett pass-by-reference eller pass-by-value spr\u00e5k?<\/h3>\n<p>Det \u00e4r alltid pass-by-value, men f\u00f6r objekt \u00e4r variabelns v\u00e4rde en referens. P\u00e5 grund av detta, n\u00e4r du passerar ett objekt och \u00e4ndrar dess medlemmar, kvarst\u00e5r dessa \u00e4ndringar utanf\u00f6r funktionen. Detta f\u00e5r det att se ut som pass-by-reference. Men om du faktiskt \u00e4ndrar v\u00e4rdet p\u00e5 objektvariabeln kommer du att se att \u00e4ndringen inte kvarst\u00e5r, vilket bevisar att det verkligen \u00e4r pass-by-value.<br \/>\nExempel p\u00e5 detta:<\/p>\n<p style=\"padding-left: 40px;\">function change(a, b, c)<br \/>\n{<\/p>\n<p style=\"padding-left: 80px;\">a = a * 10;<br \/>\nb.item = &#8221;changed&#8221;;<br \/>\nc = {item: &#8221;changed&#8221;};<\/p>\n<p style=\"padding-left: 40px;\">}<br \/>\nvar num = 10;<br \/>\nvar obj1 = {item: &#8221;unchanged&#8221;};<br \/>\nvar obj2 = {item: &#8221;unchanged&#8221;};<br \/>\nchange(num, obj1, obj2);<br \/>\nconsole.log(num);<br \/>\nconsole.log(obj1.item);<br \/>\nconsole.log(obj2.item);<br \/>\nUtmatning:<br \/>\n10<br \/>\nchanged<br \/>\nunchanged<\/p>\n<h3>F\u00f6rklara h\u00e4ndelsebubbling och hur man kan f\u00f6rhindra det.<\/h3>\n<p>H\u00e4ndelsebubbling \u00e4r n\u00e4r en h\u00e4ndelse kommer att korsa fr\u00e5n det innersta kapslade HTML-elementet och flytta upp DOM-hierarkin tills den kommer fram till det element som lyssnar p\u00e5 h\u00e4ndelsen. Det b\u00f6rjar fr\u00e5n det djupaste elementet till dess f\u00f6r\u00e4ldrar, sedan alla dess f\u00f6rf\u00e4der som \u00e4r p\u00e5 v\u00e4g fr\u00e5n botten till toppen.<\/p>\n<p>Vi kan l\u00e4gga till en h\u00e4ndelselyssnare till roten av ett niv\u00e5element som HTML eller body, h\u00e4ndelserna kommer att bubbla fram till dess.<\/p>\n<h3>Beskriv den st\u00f6rsta skillnaden mellan en `.forEach`-loop och en `.map()`-loop och varf\u00f6r du skulle v\u00e4lja den ena kontra den andra?<\/h3>\n<p><b>.forEach\u00a0<\/b><\/p>\n<ul class=\"blog-list\">\n<li style=\"font-weight: 400;\">Itererar genom elementen i en array.<\/li>\n<li style=\"font-weight: 400;\">Utf\u00f6r en \u00e5teruppringning f\u00f6r varje element.<\/li>\n<li style=\"font-weight: 400;\">Returnerar inte ett v\u00e4rde.<\/li>\n<\/ul>\n<p><b>.map()\u00a0<\/b><\/p>\n<ul class=\"blog-list\">\n<li style=\"font-weight: 400;\">Itererar genom elementen i en array.<\/li>\n<li style=\"font-weight: 400;\">\u201dMapar\u201d varje element till ett nytt element genom att anropa funktionen p\u00e5 varje element och skapa en ny array som resultat.<\/li>\n<\/ul>\n<p>Den st\u00f6rsta skillnaden mellan .forEach och .map() \u00e4r att .map() returnerar en ny array. Om du beh\u00f6ver resultatet, men inte vill \u00e4ndra den ursprungliga matrisen, \u00e4r .map() det sj\u00e4lvklara valet. Om du bara beh\u00f6ver iterera \u00f6ver en array \u00e4r .forEach ett bra val.<\/p>\n<h3>Beskriva metoderna Array.filter och Array.reduce<\/h3>\n<p>Array.filter \u00e4r en metod som returnerar en array (baserad p\u00e5 en array, som anropar metoden) med v\u00e4rden som klarar ett test, som tillhandah\u00e5lls av en callback-funktion. H\u00e4r \u00e4r ett exempel:<br \/>\n<span class=\"img-container\">\n<picture><source srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.36.29-1024x130.webp\" type=\"image\/webp\" \/><source srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.36.29-1024x130.png\" type=\"image\/png\" \/><img decoding=\"async\" class=\"lazyload\" src=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.36.29-1024x130.png\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.36.29-1024x130.png 1024w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.36.29-300x38.png 300w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.36.29-768x98.png 768w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.36.29-1536x195.png 1536w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.36.29.png 2014w\" alt=\"code javascript\" title=\"\"><\/picture>\n<\/span><br \/>\nArray.reduce \u00e4r en metod som returnerar ett enda v\u00e4rde (baserat p\u00e5 en anropande array), best\u00e4mt av reduceringsfunktionen. H\u00e4r \u00e4r ett enkelt exempel som visar hur man r\u00e4knar en summa av element i en array:<br \/>\n<span class=\"img-container\">\n<picture><source srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.37.15-1024x89.webp\" type=\"image\/webp\" \/><source srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.37.15-1024x89.png\" type=\"image\/png\" \/><img decoding=\"async\" class=\"lazyload\" src=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.37.15-1024x89.png\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.37.15-1024x89.png 1024w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.37.15-300x26.png 300w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.37.15-768x67.png 768w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.37.15-1536x134.png 1536w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.37.15.png 2022w\" alt=\"code javascript\" title=\"\"><\/picture>\n<\/span><\/p>\n<h3>Beskriva negativ o\u00e4ndlighet<\/h3>\n<p>Den negativa o\u00e4ndligheten \u00e4r ett konstant v\u00e4rde som anv\u00e4nds f\u00f6r att representera ett v\u00e4rde som \u00e4r det l\u00e4gsta tillg\u00e4ngliga. Detta inneb\u00e4r att inget annat tal \u00e4r mindre \u00e4n detta v\u00e4rde. Det kan genereras med hj\u00e4lp av en egentillverkad funktion eller genom en aritmetisk operation. JS visar negativ o\u00e4ndlighet som v\u00e4rde som \u201d-Infinity\u201d.<br \/>\n\n    <style>\n        .cross-industry{\n            margin:64px 0;\n            background-color: #ECEEF4;\n            padding:64px 56px;\n            box-shadow: 4px 24px 40px rgba(12, 22, 56, 0.1);\n                border-radius: 8px;\n        }\n        .cross-industry .section-heading{\n            font-family: Montserrat;\n            font-style: normal;\n            font-weight: bold;\n            font-size: 24px;\n            line-height: 32px;\n            letter-spacing: 0.02em;\n            color: #000000;\n        }\n        .cross-industry .section-text{\n            font-family: Montserrat;\n            font-style: normal;\n            font-weight: normal;\n            font-size: 16px;\n            line-height: 28px;\n            letter-spacing: 0.02em;\n            color: #000000;\n            margin-bottom: 32px;\n        }\n        .cross-industry .industries{\n            padding-top: 32px;\n            display: flex;\n            flex-direction: row;\n            justify-content: space-between;\n        }\n        .cross-industry .section-column{\n            display: flex;\n            flex-direction: column;   \n        }\n        .cross-industry .industry{\n            text-align: center;\n            height: 140px;\n        }\n        .cross-industry .industry p{\n            padding-top: 20px;\n            font-family: Montserrat;\n            font-style: normal;\n            font-weight: bold;\n            font-size: 16px;\n            line-height: 22px;\n            text-align: center;\n            letter-spacing: 0.02em;\n            color: #1C2655;\n        }\n    @media only screen and (max-width: 768px) {\n        .cross-industry .industries{\n            flex-direction: column;\n        }\n        .cross-industry .section-column{\n            flex-direction: row;\n            justify-content: space-around;\n        }\n        .cross-industry{\n            padding: 64px 0px;\n        }\n        .cross-industry .section-text{\n            display: none;\n        }\n        .cross-industry .section-heading{\n            padding:0 24px;\n            text-align: center;\n        }\n    }\n    \n    <\/style>\n    <section class=\"cross-industry\">\n        <h3 class=\"section-heading\">Cross-industry expertise<\/h3>\n        <span class=\"section-text\">Over the years, we've accumulated expertise in building software and conducting recruitment processes for various domains. Below are six industries in which we have particularly strong knowledge.<\/span>\n        <div class=\"industries\">\n            <div class=\"section-column\">\n                <div class=\"industry\">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"40\" height=\"40\" src=\"\/wp-content\/themes\/intentionally-blank\/assets\/svg\/for_the_enterprise\/cross-industry\/retail.svg\" alt=\"tag\" title=\"\">\n                    <p>Retail\/e-commerce<\/p>\n                <\/div>\n                <div class=\"industry\">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"43\" height=\"43\" src=\"\/wp-content\/themes\/intentionally-blank\/assets\/svg\/for_the_enterprise\/cross-industry\/construction.svg\" alt=\"plane\" title=\"\">\n                    <p>Construction<\/p>                \n                <\/div>\n            <\/div>\n            <div class=\"section-column\">\n                <div class=\"industry\">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"43\" height=\"42\" src=\"\/wp-content\/themes\/intentionally-blank\/assets\/svg\/for_the_enterprise\/cross-industry\/financial_services.svg\" alt=\"pharmacy\" title=\"\">\n                    <p>Pharmaceutical<\/p>  \n                <\/div>\n                <div class=\"industry\">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"42\" height=\"42\" src=\"\/wp-content\/themes\/intentionally-blank\/assets\/svg\/for_the_enterprise\/cross-industry\/telco.svg\" alt=\"phone\" title=\"\">\n                    <p>Telecom<\/p>  \n                <\/div>\n            <\/div>\n            <div class=\"section-column\">\n                <div class=\"industry\">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"43\" height=\"42\" src=\"\/wp-content\/themes\/intentionally-blank\/assets\/svg\/for_the_enterprise\/cross-industry\/financial_services.svg\" alt=\"money\" title=\"\">\n                    <p>Financial services,<br\/> hedge funds<\/p>  \n                <\/div>\n                <div class=\"industry\">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"42\" height=\"42\" src=\"\/wp-content\/themes\/intentionally-blank\/assets\/svg\/for_the_enterprise\/cross-industry\/entertainment.svg\" alt=\"tv\" title=\"\">\n                    <p>Media &<br\/> entertainment<\/p>  \n                <\/div>\n            <\/div>\n        <\/div>\n    <\/section><\/p>\n<h3>Vad \u00e4r den temporala d\u00f6da zonen i ES6?<\/h3>\n<p>I ES6 \u00e4r &#8217;let&#8217; och &#8217;const&#8217; upph\u00f6jda (som &#8217;var&#8217;, &#8217;class&#8217; och &#8217;function&#8217;), men det finns en period mellan att de kommer in i omfattningen och deklareras d\u00e4r de inte kan n\u00e5s. Denna period \u00e4r den temporala d\u00f6da zonen (TDZ).<\/p>\n<p style=\"padding-left: 40px;\">\/\/console.log(aLet) \/\/skulle ge ReferenceError<br \/>\nlet alLet; console.log(aLet); \/\/ undefined<br \/>\naLet = 5;<br \/>\nconsole.log(aLet); \/\/ 5<\/p>\n<p>I det h\u00e4r exemplet upph\u00f6r den temporala d\u00f6dzonen n\u00e4r \u201daLet\u201d deklareras i st\u00e4llet f\u00f6r att tilldelas.<\/p>\n<h3>Vad \u00e4r ett l\u00f6fte? Vilka \u00e4r de m\u00f6jliga tillst\u00e5nden f\u00f6r ett l\u00f6fte?<\/h3>\n<p>Det \u00e4r ett objekt som kan returneras synkront fr\u00e5n en asynkron funktion. De \u00e4r l\u00e4tta att hantera n\u00e4r man har att g\u00f6ra med flera asynkrona operationer d\u00e4r callbacks kan skapa ett callback-helvete som leder till ohanterlig kod.<\/p>\n<p>F\u00f6re promises anv\u00e4ndes events och callback-funktioner, men de hade begr\u00e4nsade funktioner och skapade ohanterlig kod. Flera callback-funktioner skulle skapa ett callback-helvete som leder till ohanterlig kod. H\u00e4ndelser var inte bra p\u00e5 att hantera asynkrona operationer.<\/p>\n<p>Promises \u00e4r det perfekta valet f\u00f6r att hantera asynkrona operationer p\u00e5 det enklaste s\u00e4ttet. De kan enkelt hantera flera asynkrona operationer och ger b\u00e4ttre felhantering \u00e4n callbacks och events. Ett l\u00f6fte kan vara i ett av tre m\u00f6jliga tillst\u00e5nd: v\u00e4ntande, uppfyllt eller v\u00e4ntande. Anv\u00e4ndare kan bifoga callbacks f\u00f6r att hantera det uppfyllda v\u00e4rdet eller orsaken till avslaget.<br \/>\nF\u00f6rdelar med att anv\u00e4nda promises:<\/p>\n<ul class=\"blog-list\">\n<li style=\"font-weight: 400;\">F\u00f6rb\u00e4ttrar kodens l\u00e4sbarhet<\/li>\n<li style=\"font-weight: 400;\">B\u00e4ttre hantering av asynkrona operationer<\/li>\n<li style=\"font-weight: 400;\">B\u00e4ttre kontrollfl\u00f6desdefinition i asynkron logik<\/li>\n<li style=\"font-weight: 400;\">B\u00e4ttre felhantering<\/li>\n<\/ul>\n<h3> F\u00f6rklara vad som \u00e4r hoisting i Javascript<\/h3>\n<p>Hoisting \u00e4r ett koncept d\u00e4r Javascript, som standard, flyttar alla deklarationer till toppen av det aktuella omf\u00e5nget. P\u00e5 s\u00e5 s\u00e4tt kan en variabel anv\u00e4ndas innan den har deklarerats. Notera att Javascript endast hoistar deklarationer och inte initialiseringar.<br \/>\n\n            <div class=\"schedule-consultation middle-scheduler\">\n                <div class=\"block-contact\">\n                    <p>Har du behov av IT-rekrytering?<\/p>\n                <\/div>\n                <div class=\"contact-us-show schedule-consultation-button\">\n                    \ud83c\udfa7\n                    <span>Boka ett m\u00f6te<\/span>\n                <\/div>\n            <\/div>\n    <\/p>\n<h3>Skillnad mellan undefined, NaN och null<\/h3>\n<ul class=\"blog-list\">\n<li style=\"font-weight: 400;\">Undefined &#8211; standardv\u00e4rdet som anv\u00e4nds vid \u00e5tkomst till saker som inte existerar. Det betyder att objektet inte har n\u00e5got v\u00e4rde. Detta intr\u00e4ffar n\u00e4r du skapar en variabel och inte tilldelar den n\u00e5got v\u00e4rde.<\/li>\n<li style=\"font-weight: 400;\">Null \u2013 objektet \u00e4r tomt och pekar inte p\u00e5 n\u00e5gon minnesadress.<\/li>\n<li style=\"font-weight: 400;\">NaN \u2013 epresenterar ett v\u00e4rde som \u201dinte \u00e4r ett tal\u201d. Det finns m\u00e5nga s\u00e4tt som du kan generera detta fel p\u00e5, bland annat ogiltiga matematiska operationer som 0\/0 eller \u201dn\u00e5gon text\u201d \/ 1.<\/li>\n<\/ul>\n<h3>Vad \u00e4r v\u00e4rdet av typeof undefined == typeof NULL?<\/h3>\n<p>Uttrycket kommer att utv\u00e4rderas till sant eftersom NULL kommer att behandlas som vilken annan odefinierad variabel som helst.<br \/>\n<span class=\"img-container\"><picture><source srcset=\"\/wp-content\/uploads\/2024\/07\/person-using-macbook-pro-on-person-s-lap.webp\" type=\"image\/webp\" \/><source srcset=\"\/wp-content\/uploads\/2024\/07\/person-using-macbook-pro-on-person-s-lap.png\" type=\"image\/png\" \/><img decoding=\"async\" class=\"lazyload\" src=\"\/wp-content\/uploads\/2024\/07\/person-using-macbook-pro-on-person-s-lap.png\" alt=\"dev shop\" title=\"\"><\/picture>\n<span class=\"pic-caption\">Han b\u00f6r regelbundet l\u00e4sa tekniknyheter, fr\u00e4mst om teknik som han anv\u00e4nder. Det \u00e4r en bra id\u00e9 att lyssna p\u00e5 tekniska podcasts eller titta p\u00e5 videor.<\/span><\/span><\/p>\n<h3>Vad \u00e4r skillnaden mellan &#8217;==&#8217; och &#8217;===&#8217;?<\/h3>\n<p>Den st\u00f6rsta skillnaden mellan operat\u00f6rerna \u201d==\u201d och \u201d===\u201d \u00e4r att den f\u00f6rstn\u00e4mnda j\u00e4mf\u00f6r variabler genom att g\u00f6ra en typkorrigering, t.ex. om du j\u00e4mf\u00f6r ett tal med en str\u00e4ng med numerisk bokstav, till\u00e5ter == det, men === till\u00e5ter inte det, eftersom det inte bara kontrollerar v\u00e4rdet utan ocks\u00e5 en typ av tv\u00e5 variabler. Om tv\u00e5 variabler inte \u00e4r av samma typ returnerar \u201d===\u201d falskt, medan \u201d==\u201d returnerar sant.<\/p>\n<h3>Vad \u00e4r skillnaden mellan <i>let<\/i> och <i>var<\/i>?<\/h3>\n<p>Den st\u00f6rsta skillnaden \u00e4r scoping-reglerna. Variabler som deklareras med nyckelordet <em>var<\/em> \u00e4r scoped till den omedelbara funktionskroppen medan <em>let<\/em>-variabler \u00e4r scoped till det omedelbara omslutande blocket som anges med parenteser. Anledningen till att nyckelordet <em>let<\/em> introducerades i spr\u00e5ket var att funktionsomf\u00e5nget \u00e4r f\u00f6rvirrande och var en av de viktigaste k\u00e4llorna till buggar.<\/p>\n<h3>Hur definierar man n\u00e5gra objekt av exakt samma typ?<\/h3>\n<p>Innan klasser d\u00f6k upp i Javascript anv\u00e4nde utvecklare en specifik typ av funktion som kallas \u201dconstructor\u201d. Numera anv\u00e4nder dock utvecklare klasser f\u00f6r att definiera typer av objekt. Skillnaden mellan dessa tv\u00e5 syntaxer kan ses nedan:<br \/>\n<span class=\"img-container\">\n<picture><source srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.39.35-1024x513.webp\" type=\"image\/webp\" \/><source srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.39.35-1024x513.png\" type=\"image\/png\" \/><img decoding=\"async\" class=\"lazyload\" src=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.39.35-1024x513.png\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.39.35-1024x513.png 1024w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.39.35-300x150.png 300w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.39.35-768x385.png 768w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.39.35-1536x770.png 1536w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.39.35.png 1824w\" alt=\"code javascript\" title=\"\"><\/picture><\/span><br \/>\n<span class=\"img-container\">\n<picture><source srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.40.09-1024x514.webp\" type=\"image\/webp\" \/><source srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.40.09-1024x514.png\" type=\"image\/png\" \/><img decoding=\"async\" class=\"lazyload\" src=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.40.09-1024x514.png\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"\/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.40.09-1024x514.png 1024w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.40.09-300x150.png 300w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.40.09-768x385.png 768w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.40.09-1536x771.png 1536w, \/wp-content\/uploads\/2020\/06\/Screenshot-2020-06-19-at-11.40.09.png 1822w\" alt=\"code javascript\" title=\"\"><\/picture><\/span><br \/>\nKlassyntax anv\u00e4nds oftare, eftersom den \u00e4r tydligare. Men under huven fungerar klassyntax p\u00e5 samma s\u00e4tt som konstrukt\u00f6rs syntax. Det \u00e4r en typ av \u201dsockerkod\u201d f\u00f6r konstrukt\u00f6rssyntax.<br \/>\n<style>\n    \/* Wide range of technology *\/\n    #wide-range-of-technology {\n    margin: 64px 0px;\n    text-align: center;\n    padding: 64px;\n    background: #FFFFFF;\n    box-shadow: 4px 24px 40px rgba(12, 22, 56, 0.1);\n    border-radius: 8px;\n    }\n    \n    #wide-range-of-technology .col-pair {\n    display: flex;\n    flex: 1;\n    }\n    \n    #wide-range-of-technology .section-row {\n    display: flex;\n    }\n    \n    #wide-range-of-technology .section-column {\n    background-color: #ECEEF4;\n    flex: 1;\n    margin: 10px;\n    border-radius: 8px;\n    }\n    \n    #wide-range-of-technology p {\n        font-family: Montserrat;\n        font-style: normal;\n        font-weight: 600;\n        font-size: 17px;\n        line-height: 140%;\n        text-align: left;\n        letter-spacing: 0.02em;\n        color: #000000;\n        padding-bottom: 32px;\n        padding-left: 24px;\n        padding-right: 4px;\n    }\n\n    \n    #wide-range-of-technology .btn-container {\n    margin-top: 50px;\n    }\n    \n    #wide-range-of-technology img {\n    padding-top: 42px;\n    width: 120px;\n    }\n    \n    #wide-range-of-technology .top-text {\n    font-family: Montserrat;\n    font-style: normal;\n    font-weight: bold;\n    font-size: 18px;\n    line-height: 30px;\n    letter-spacing: 0.02em;\n    color: #0332C9;\n    text-align: left;\n    padding: 0;\n    margin-bottom: 8px;\n    margin-top: 0;\n    }\n    \n    #wide-range-of-technology .heading-text {\n    font-family: Montserrat;\n    font-style: normal;\n    font-weight: normal;\n    font-size: 30px;\n    line-height: 40px;\n    letter-spacing: 0.02em;\n    color: #000000;\n    text-align: left;\n    margin-top: 0;\n    margin-bottom: 50px;\n    }\n    \n    @media only screen and (max-width: 768px) {\n    #wide-range-of-technology .section-row {\n    flex-direction: column;\n    }\n    #wide-range-of-technology .section-column {\n    margin: 8px 0px;\n    }\n    #wide-range-of-technology {\n    padding: 32px 20px 64px 20px;\n    text-align: center;\n    }\n    }\n    <\/style>\n    <section id=\"wide-range-of-technology\">\n    <p class=\"top-text\">For demanding clients<\/p>\n    <h3 class=\"heading-text\">Wide range of technology services<\/h3>\n    <div class=\"section-row\">\n    <div class=\"section-column\">\n    <picture>\n    <img loading=\"lazy\" decoding=\"async\" alt=\"Enterprise Application Development\" width=\"120\" height=\"162\" src=\"\/wp-content\/uploads\/2020\/06\/enterprise.svg\" title=\"\">\n    <\/picture>\n    <p>Enterprise application<br> development<\/p>\n    <\/div>\n    <div class=\"section-column\">\n    <picture>\n    <img loading=\"lazy\" decoding=\"async\" alt=\"Mobile Apps\" width=\"120\" height=\"162\" src=\"\/wp-content\/uploads\/2020\/06\/mobile-apps.svg\" title=\"\">\n    <\/picture>\n    <p>Mobile apps<\/p>\n    <\/div>\n    <\/div>\n    <div class=\"section-row\">\n    <div class=\"section-column\">\n    <picture>\n    <img loading=\"lazy\" decoding=\"async\" alt=\"Big Data and Data Analytics\" width=\"120\" height=\"162\" src=\"\/wp-content\/uploads\/2020\/06\/big-data-and-data-analytics.svg\" title=\"\">\n    <\/picture>\n    <p>Big Data and Data<br> Analytics<\/p>\n    <\/div>\n    <div class=\"section-column\">\n    <picture>\n    <img loading=\"lazy\" decoding=\"async\" alt=\"Tech Recruitment Services\" width=\"120\" height=\"162\" src=\"\/wp-content\/uploads\/2020\/06\/tech-recruitment-services.svg\" title=\"\">\n    <\/picture>\n    <p>Tech recruitment<br> services<\/p>\n    <\/div>\n    <\/div>\n    <div class=\"btn-container\"> <a href=\"\/services\/\">\n    <!-- target=\"_blank\" rel=\"noopener noreferrer\" -->\n    <button class=\"button_empty\"> <span> Learn more <\/span><\/button> <\/a> <\/div>\n    <\/section><\/p>\n<h3>Vad betyder <i>const<\/i> i JS?<\/h3>\n<p>Vid f\u00f6rsta anblicken kan det tyckas att <i>const<\/i> betyder samma sak som i andra spr\u00e5k som C++, Java etc. d\u00e4r det betyder \u201dett konstant v\u00e4rde\u201d. I JS betyder det dock n\u00e5got lite annorlunda. <i>Const<\/i> betyder att du inte kan skriva \u00f6ver variabeln, men det l\u00e5ter dig fortfarande \u00e4ndra n\u00e5got inom den.<\/p>\n<p>S\u00e5 om en <i>const<\/i>-variabel \u00e4r ett objekt kan v\u00e4rdena p\u00e5 dess attribut fortfarande \u00e4ndras. Liknande situation uppst\u00e5r f\u00f6r arrayer, d\u00e4r du kan \u00e4ndra v\u00e4rden p\u00e5 deras element.<\/p>\n<h3>Vad \u00e4r betydelsen av och anledningen till att hela inneh\u00e5llet i en JavaScript-k\u00e4llfil paketeras i ett funktionsblock?<\/h3>\n<p>Detta \u00e4r en allt vanligare metod som anv\u00e4nds av m\u00e5nga popul\u00e4ra JavaScript-bibliotek (jQuery, Node.js, etc.). Denna teknik skapar en st\u00e4ngning runt hela inneh\u00e5llet i filen, vilket kanske \u00e4r viktigast, skapar ett privat namnomr\u00e5de och d\u00e4rmed hj\u00e4lper till att undvika potentiella namnkollisioner mellan olika JavaScript-moduler och bibliotek.<\/p>\n<p>En annan egenskap hos denna teknik \u00e4r att den ger m\u00f6jlighet till ett l\u00e4tt refererbart (f\u00f6rmodligen kortare) alias f\u00f6r en global variabel. Detta anv\u00e4nds ofta, till exempel i jQuery-plugins. jQuery l\u00e5ter dig inaktivera $-referensen till jQuery-namnomr\u00e5det med hj\u00e4lp av jQuery.noConflict(). Om detta har gjorts kan din kod fortfarande anv\u00e4nda $ med hj\u00e4lp av denna st\u00e4ngningsteknik, enligt f\u00f6ljande:<br \/>\n(function($) { \/* jQuery-plugin-kod som refererar till $ *\/ } )(jQuery);<\/p>\n<h3> F\u00f6rklara \u201duse strict\u201d<\/h3>\n<p>Syftet med \u201duse strict\u201d \u00e4r att ange att koden ska k\u00f6ras i \u201dstrict mode\u201d, dvs. i strikt l\u00e4ge kan du t.ex. inte anv\u00e4nda odeklarerade variabler. Strikt l\u00e4ge g\u00f6r det l\u00e4ttare att skriva \u201ds\u00e4kert\u201d.<\/p>\n<p>Som ett exempel, i normal JavaScript skapar felskrivning av ett variabelnamn en ny global variabel. I strikt l\u00e4ge kommer detta att ge ett felmeddelande, vilket g\u00f6r det om\u00f6jligt att av misstag skapa en global variabel. I strikt l\u00e4ge kommer varje tilldelning till en icke skrivbar egenskap, en egenskap som endast kan h\u00e4mtas, en icke-existerande egenskap, en icke-existerande variabel eller ett icke-exi sterande objekt att leda till ett fel.<\/p>\n<h3>Vad \u00e4r en \u201dclosure\u201d i JavaScript?<\/h3>\n<p>En closure \u00e4r en inre funktion som har tillg\u00e5ng till variablerna i den yttre (inneslutande) funktionens scope-kedja. Closure har tillg\u00e5ng till variabler i tre scope, n\u00e4mligen: variabler i sitt eget scope, variabler i den omslutande funktionens scope och globala variabler.<\/p>\n<h3>I JavaScript, varf\u00f6r \u00e4r operatorn \u201dthis\u201d inkonsekvent?<\/h3>\n<p>Det viktigaste att f\u00f6rst\u00e5 \u00e4r att ett funktionsobjekt inte har ett fast \u201dthis\u201d-v\u00e4rde &#8211; v\u00e4rdet p\u00e5 \u201dthis\u201d \u00e4ndras beroende p\u00e5 hur funktionen anropas. Vi s\u00e4ger att en funktion anropas med ett visst \u201dthis\u201d-v\u00e4rde &#8211; \u201dthis\u201d-v\u00e4rdet best\u00e4ms vid anropstillf\u00e4llet, inte vid definitionstillf\u00e4llet.<\/p>\n<ul class=\"blog-list\">\n<li style=\"font-weight: 400;\">Om funktionen anropas som en \u201draw\u201d-funktion kommer \u201dthis\u201d att vara det globala objektet.<\/li>\n<li style=\"font-weight: 400;\">Om den anropas som en metod p\u00e5 ett objekt kommer &#8217;this&#8217; att vara det anropande objektet.<\/li>\n<li style=\"font-weight: 400;\">Om du anropar en funktion med \u201dcall\u201d eller \u201dapply\u201d anges \u201dthis\u201d som det f\u00f6rsta argumentet till \u201dcall\u201d eller \u201dapply\u201d.<\/li>\n<li style=\"font-weight: 400;\">Om den anropas som en h\u00e4ndelseavlyssnare kommer &#8217;this&#8217; att vara det element som \u00e4r m\u00e5let f\u00f6r h\u00e4ndelsen.<\/li>\n<li style=\"font-weight: 400;\">Om den anropas som en konstrukt\u00f6r med &#8217;new&#8217;, kommer &#8217;this&#8217; att vara ett nyskapat objekt vars prototyp \u00e4r satt till egenskapen &#8217;prototype&#8217; i konstrukt\u00f6rsfunktionen.<\/li>\n<li style=\"font-weight: 400;\">Om funktionen \u00e4r resultatet av en \u201dbind\u201d-operation, kommer funktionen alltid och f\u00f6r alltid att ha \u201dthis\u201d inst\u00e4llt p\u00e5 det f\u00f6rsta argumentet i \u201dbind\u201d-anropet som producerade den. (Detta \u00e4r det enda undantaget fr\u00e5n regeln \u201dfunktioner har inte ett fast \u2019this\u2019\u201d &#8211; funktioner som produceras av &#8217;bind&#8217; har faktiskt ett of\u00f6r\u00e4nderligt &#8217;this&#8217;.)<\/li>\n<\/ul>\n<\/section>\n<style>\n    \/* Reasons to chose devsdata *\/\n    #reasons-to-chose .section-container{\n        box-shadow: 4px 24px 40px rgba(12, 22, 56, 0.1);\n        padding-bottom: 82px;\n        padding-left: 56px;\n        padding-right: 56px;;\n        text-align: center;\n        padding-top: 64px;\n        border-radius: 8px;\n    }\n    #reasons-to-chose .tiles{\n        display: flex;\n        flex-direction: row;\n        justify-content: center;\n        margin-bottom: 64px;;\n    }\n    #reasons-to-chose .tile{\n        background-color: #ECEEF4;;\n        margin:7px;\n        padding: 22px;\n        text-align: left;\n        width: 180px;\n        min-height: 210px;\n        border-radius: 8px;\n    }        \n    #reasons-to-chose .tile span{\n        font-family: Montserrat;\n        font-style: normal;\n        font-weight: normal;\n        font-size: 16px;\n        line-height: 28px;\n        letter-spacing: 0.02em;\n        color: #000000;\n    }        \n\n    #reasons-to-chose .button_empty span::after{\n        content: \"Find out why we are unique\";\n    }\n\n    #reasons-to-chose .top-text{\n        font-family: Montserrat;\n        font-style: normal;\n        font-weight: bold;\n        font-size: 24px;\n        line-height: 32px;\n        letter-spacing: 0.02em;\n        color: #000000;\n        text-align: left;\n    }\n    @media only screen and (max-width: 768px) {\n    #reasons-to-chose .section-container{\n    padding: 32px 25px 50px 25px;\n    }\n        #reasons-to-chose .tile{\n            width: auto;\n        }\n        #reasons-to-chose .tiles{\n            flex-direction: column;\n        }\n        #reasons-to-chose .button_empty span::after{\n            content: \"Learn more\";\n        }\n    }\n    \n    <\/style>\n    \n    <section id=\"reasons-to-chose\">\n    <div class=\"section-container\">\n    <h3 class=\"top-text\">\n    Reasons to choose DevsData\n    <\/h3>\n    <div class=\"tiles\">\n    <div class=\"tile\">\n    <p><img loading=\"lazy\" decoding=\"async\" width=\"100\" height=\"100\" src=\"\/wp-content\/uploads\/2020\/11\/a-players.svg\" alt=\"a players\" title=\"\"><\/p>\n    <span>Only \u201cA\u201d Players. Veteran engineers with experience in various domains.<\/span>\n    <\/div>                \n    <div class=\"tile\">\n    <p><img loading=\"lazy\" decoding=\"async\" width=\"100\" height=\"100\" src=\"\/wp-content\/uploads\/2020\/11\/security-and-data.svg\" alt=\"security\" title=\"\"><\/p>\n    <span>Serious about security and sensitive data<\/span>\n    <\/div>                \n    <div class=\"tile\">\n    <p><img loading=\"lazy\" decoding=\"async\" width=\"100\" height=\"100\" src=\"\/wp-content\/uploads\/2020\/11\/recent-frameworks.svg\" alt=\"meteroic app\" title=\"\"><\/p>\n    <span>Meteoric pace of development with the most recent frameworks<\/span>\n    <\/div>\n    <\/div>\n    <a href=\"\/how-we-are-different\/\">\n    <!-- target=\"_blank\" rel=\"noopener noreferrer\" -->\n    <button class=\"button_empty\" aria-label=\"Read more\"><span><\/span><\/button>\n    <\/a>\n    <\/div>\n    <\/section>\n<section>\n<h2>Ta bort<\/h2>\n<p>Det h\u00e4r \u00e4r n\u00e5gra av exemplen p\u00e5 mycket grundl\u00e4ggande fr\u00e5gor som kan hj\u00e4lpa dig att anst\u00e4lla en Javascript-utvecklare. Vi st\u00e4ller dem ofta p\u00e5 <a href=\u201dhttps:\/\/devsdata.com\/\u201d>DevsData<\/a>. Men v\u00e5r erfarenhet visar att \u00e4ven erfarna Javascript-utvecklare ibland misslyckas med att ha en djup f\u00f6rst\u00e5else f\u00f6r de programmeringsspr\u00e5k de anv\u00e4nder.<\/p>\n<p>Men \u00e4n en g\u00e5ng kan vi inte nog betona att en bra rekryteringsprocess ocks\u00e5 b\u00f6r testa f\u00f6r m\u00e5nga andra egenskaper och f\u00e4rdigheter \u00e4n bara kunskap om programmeringsspr\u00e5k. Om du vill anst\u00e4lla en fullstack-utvecklare, en Javascript-utvecklare eller om du sj\u00e4lv \u00e4r Javascript-utvecklare, kommer exemplen ovan f\u00f6rhoppningsvis att hj\u00e4lpa dig att f\u00f6rbereda dig inf\u00f6r din kommande intervju, antingen som intervjuare eller som intervjuad.<\/p>\n<p><span class=\"img-container\"><picture><source srcset=\"\/wp-content\/uploads\/2020\/05\/Javascript-meme.webp\" type=image\/webp><source srcset=\"\/wp-content\/uploads\/2020\/05\/Javascript-meme.jpg\" type=image\/jpg><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"\/wp-content\/uploads\/2020\/05\/Javascript-meme.jpg\" alt=\"Meme about Javascript\" width=\"600\" height=\"398\" title=\"\"><\/picture><span class=\"pic-caption\">Trots att Javascript \u00e4r enormt popul\u00e4rt och mycket viktigt har det samtidigt f\u00e5tt m\u00e5nga hatare i branschen.<\/span><\/span><br \/>\n<\/section>\n<section>\n<h2>H\u00f6r av dig f\u00f6r att hyra Javascript-utvecklare<\/h2>\n<p>Om du beh\u00f6ver hj\u00e4lp med att anst\u00e4lla Javascript-utvecklare, eller anst\u00e4lla en professionell full stack, front-end eller back-end <a href='\/hire-software-engineer\/'>programvaruingenj\u00f6r,<\/a> eller vill utveckla ett teknikprojekt, kontakta oss p\u00e5 DevsData.<br \/>\nDevsData LLC \u00e4r en IT-konsult- och rekryteringsbyr\u00e5 baserad i New York City och Europa. Utrustad med ingenj\u00f6rer p\u00e5 Google-niv\u00e5 har vi kompetens, erfarenhet och resurser f\u00f6r att bygga komplexa, personliga system f\u00f6r att v\u00e4xa din finansiella verksamhet. Kontakta oss idag.<br \/>\n<\/section>\n<p>\n        <section class=\"author_section_container\">\n            \n            <p class=\"contact_on_twitter\">\n                Har du n\u00e5gra fr\u00e5gor eller kommentarer? L\u00e5t mig veta p\u00e5 \n                <a href=\"https:\/\/twitter.com\/tompotanski\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Twitter\/X<\/a>.\n            <\/p> \n        \n            <div class=\"schedule-consultation\">\n                <div class=\"block-contact\">\n                    <p>Uppt\u00e4ck hur IT-rekrytering och bemanning kan tillgodose dina behov av talanger. Utforska \n        trendiga regioner som Polen, Portugal, Mexiko, Brasilien och mer. <\/p>\n                <\/div>\n                <div class=\"contact-us-show schedule-consultation-button\">\n                    \ud83d\uddd3\ufe0f\n                    <span>Boka en konsultation<\/span>\n                <\/div>\n            <\/div>\n            <div class=\"author_section\">\n                <div class=\"author_photo_container\">\n                    <picture>\n                        <source srcset=\"https:\/\/staging.devsdata.com\/wp-content\/uploads\/2024\/11\/tompotanski-new-min.webp\" type=\"image\/webp\"> \n                        <source srcset=\"https:\/\/staging.devsdata.com\/wp-content\/uploads\/2024\/11\/tompotanski-new-min.jpg\" type=\"image\/jpeg\">\n                        <img decoding=\"async\" class=\"avatar lazyload\" width=\"64\" height=\"64\" src=\"https:\/\/staging.devsdata.com\/wp-content\/uploads\/2024\/11\/tompotanski-new-min.jpg\" alt=\"avatar\" loading=\"lazy\" title=\"Tom Potanski\" >\n                    <\/picture>\n                    <a class=\"read_full_bio\" href=\"\/author\/tom-potanski\/\" aria-label=\"Read more from Tom Potanski\">L\u00e4s hela biografin<\/a>\n                <\/div>\n                <div class=\"author_info_container\">\n                    <div class=\"author_info\" data-role=\"F\u00f6rfattaren\">\n                        <h4 id=\"author_title\">\n                            <a href=\"\/author\/tom-potanski\/\" aria-label=\"Read more from Tom Potanski\">Tom Potanski<\/a>\n                            <span class=\"position\">Managing Director<\/span>\n                        <\/h4>\n                    <\/div>\n                <\/div>\n                <div class=\"author_about\">\n                    <span>Tom is a passionate and experienced technology leader with 12 years of commercial experience in software and technology. His focus is on merging business with technology to help American clients find top technical talent in Europe and Latin America. He leverages industry insights and strategic thinking to connect companies with the right professionals, building lasting client relationships.<\/span>\n                    <div class=\"links\">\n                        <ul class=\"author_socials\">\n            <li>\n                <a href=\"https:\/\/www.linkedin.com\/in\/tompotanski\/\" aria-label=\"Check out Tom Potanski on LinkedIn\" target=\"_blank\" rel=\"nofollow noreferrer noopener\">\n                    <svg version=\"1.0\" fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 448 512\" aria-hidden=\"true\">\n                        <g id=\"linkedin5_layer\">\n                            <path d=\"M416 32H31.9C14.3 32 0 46.5 0 64.3v383.4C0 465.5 14.3 480 31.9 480H416c17.6 0 32-14.5 32-32.3V64.3c0-17.8-14.4-32.3-32-32.3zM135.4 416H69V202.2h66.5V416zm-33.2-243c-21.3 0-38.5-17.3-38.5-38.5S80.9 96 102.2 96c21.2 0 38.5 17.3 38.5 38.5 0 21.3-17.2 38.5-38.5 38.5zm282.1 243h-66.4V312c0-24.8-.5-56.7-34.5-56.7-34.6 0-39.9 27-39.9 54.9V416h-66.4V202.2h63.7v29.2h.9c8.9-16.8 30.6-34.5 62.9-34.5 67.2 0 79.7 44.3 79.7 101.9V416z\" data-hs-event-238572417=\"1\"><\/path>\n                        <\/g>\n                    <\/svg>\n                <\/a>\n            <\/li>\n            <li>\n                <a href=\"https:\/\/twitter.com\/tompotanski\" aria-label=\"Check out Tom Potanski on Twitter\" target=\"_blank\" rel=\"nofollow noreferrer noopener\">\n                    <svg viewBox=\"0 0 512 512\" class=\"scriptlesssocialsharing__icon twitter\" fill=\"currentColor\" height=\"1em\" width=\"1em\" aria-hidden=\"true\" focusable=\"false\" role=\"img\">\n                        <path d=\"M389.2 48h70.6L305.6 224.2 487 464H345L233.7 318.6 106.5 464H35.8L200.7 275.5 26.8 48H172.4L272.9 180.9 389.2 48zM364.4 421.8h39.1L151.1 88h-42L364.4 421.8z\"><\/path>\n                    <\/svg>\n                <\/a>\n            <\/li>\n            <li>\n                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167.562834,4.25836743 187.500628,4.25836743 Z M243.303393,11.3867175 C250.314,11.3867175 256,38.835526 256,72.6964154 C256,106.547493 250.316453,134.006113 243.303393,134.006113 C236.290333,134.006113 230.609239,106.554852 230.609239,72.6964154 C230.609239,38.837979 236.292786,11.3867175 243.303393,11.3867175 Z\" fill=\"currentColor\"><\/path>\n                        <\/g>\n                    <\/svg>    \n                <\/a>\n            <\/li>\n            <li>\n                <a href=\"mailto:tom.potanski@devsdata.com\" aria-label=\"Email Tom Potanski\">\n                    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"32\" height=\"32\" viewBox=\"0 0 512 512\"><path fill=\"currentColor\" d=\"M64 112c-8.8 0-16 7.2-16 16v22.1l172.5 141.6c20.7 17 50.4 17 71.1 0L464 150.1V128c0-8.8-7.2-16-16-16zM48 212.2V384c0 8.8 7.2 16 16 16h384c8.8 0 16-7.2 16-16V212.2L322 328.8c-38.4 31.5-93.7 31.5-132 0zM0 128c0-35.3 28.7-64 64-64h384c35.3 0 64 28.7 64 64v256c0 35.3-28.7 64-64 64H64c-35.3 0-64-28.7-64-64z\"\/><\/svg>\n                <\/a>\n            <\/li><\/ul>\n                        <a class=\"recruitment_link\" href=\"\/recruitment\/\" target=\"_blank\" rel=\"noopener noreferrer\">\n                            L\u00e4s mer om v\u00e5ra IT-bemanningstj\u00e4nster\n                            <svg width=\"20\" height=\"20\" viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"https:\/\/www.w3.org\/2000\/svg\">\n                                <path d=\"M5 12H19\" stroke=\"#000\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><\/path>\n                                <path d=\"M12 5L19 12L12 19\" stroke=\"#000\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><\/path>\n                            <\/svg>\n                        <\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n            <div class=\"tags-author \">\n                <a href=\"\/tag\/javascript\/\">JavaScript<\/a><a href=\"\/tag\/software-development\/\">Software development<\/a><a href=\"\/tag\/web-development\/\">Web development<\/a>\n            <\/div>\n        <\/section>\n    <br \/>\n<script>\n    const faq = {\n      \"Vad g\u00f6r en Javascript-utvecklare?\": {\n        \"Answer\": \"Vanligtvis arbetar en Javascript-utvecklare med frontend-delen av systemet, men det \u00e4r inte ovanligt att Javascript anv\u00e4nds f\u00f6r backend-utveckling av webbapplikationer som n\u00e4mnts ovan (s\u00e4rskilt med verktyg som Node.js, Express och PM2).\"\n      },\n      \"Vad \u00e4r Javascript?\": {\n        \"Answer\": \"Javascript (JS) \u00e4r en typ av programmeringsspr\u00e5k som oftast anv\u00e4nds f\u00f6r webbutveckling (och p\u00e5 senare tid \u00e4ven mycket popul\u00e4rt f\u00f6r mobilutveckling och p\u00e5 serversidan). Med Javascript-utveckling kan en webbplats k\u00f6ra dynamiskt inneh\u00e5ll, animera bilder, styra multimedia, kommunicera med servrarna, bearbeta information och mycket mer.\"\n      },\n      \"Vilka f\u00e4rdigheter b\u00f6r en Javascript-utvecklare ha?\": {\n        \"Answer\": \"Det finns vissa kriterier som en potentiell Javascript-utvecklare b\u00f6r besitta. Ett stort intresse f\u00f6r l\u00e4rande och webbutveckling b\u00f6r definitivt finnas med p\u00e5 checklistan. En JavaScript-utvecklare b\u00f6r ocks\u00e5 vara bekant med JavaScript-ramverk, som \u00e4r absolut n\u00f6dv\u00e4ndiga f\u00f6r att beh\u00e4rska spr\u00e5ket.\"\n      },\n      \"Vad \u00e4r anonyma funktioner?\": {\n        \"Answer\": \"Anonyma funktioner kallas \u00e4ven f\u00f6r pilfunktioner. Det \u00e4r en funktion utan namn. Den mest typiska anv\u00e4ndningen \u00e4r att skicka dem som ett argument till en annan funktion eller att anv\u00e4nda dem f\u00f6r att konstruera resultatet av en funktion av h\u00f6gre ordning som m\u00e5ste returnera en funktion.\"\n      },\n      \"Vad \u00e4r en generator i Javascript?\": {\n        \"Answer\": \"Generatorfunktioner g\u00f6r det m\u00f6jligt att definiera en iterativ algoritm genom att skriva en enda funktion vars utf\u00f6rande inte \u00e4r kontinuerligt. De skrivs med hj\u00e4lp av syntaxen function*. N\u00e4r generatorn anropas exekverar den inte sin kod, utan returnerar en speciell typ av iterator, kallad generator.\"\n      },\n      \"Vad \u00e4r eventbubbling?\": {\n        \"Answer\": \"H\u00e4ndelsebubbling \u00e4r n\u00e4r en h\u00e4ndelse kommer att g\u00e5 fr\u00e5n det innersta kapslade HTML-elementet och r\u00f6ra sig upp\u00e5t i DOM-hierarkin tills den kommer fram till det element som lyssnar p\u00e5 h\u00e4ndelsen. Det b\u00f6rjar fr\u00e5n det djupaste elementet till dess f\u00f6r\u00e4ldrar, sedan alla dess f\u00f6rf\u00e4der som \u00e4r p\u00e5 v\u00e4g fr\u00e5n botten till toppen.\"\n      },\n      \"Vad \u00e4r negativ o\u00e4ndlighet i Javascript?\": {\n        \"Answer\": \"Den negativa o\u00e4ndligheten \u00e4r ett konstant v\u00e4rde som anv\u00e4nds f\u00f6r att representera ett v\u00e4rde som \u00e4r det l\u00e4gsta tillg\u00e4ngliga. Detta inneb\u00e4r att inget annat tal \u00e4r mindre \u00e4n detta v\u00e4rde. Det kan genereras med hj\u00e4lp av en egentillverkad funktion eller genom en aritmetisk operation. JS visar negativ o\u00e4ndlighet som v\u00e4rde som \u201d-Infinity\u201d.\"\n      },\n      \"Vad \u00e4r ett l\u00f6fte i Javascript?\": {\n        \"Answer\": \"Det \u00e4r ett objekt som kan returneras synkront fr\u00e5n en asynkron funktion. De \u00e4r l\u00e4tta att hantera n\u00e4r man har att g\u00f6ra med flera asynkrona operationer d\u00e4r callbacks kan skapa ett callback-helvete som leder till ohanterlig kod. Genom att anv\u00e4nda promises f\u00f6rb\u00e4ttras kodens l\u00e4sbarhet, hanteringen av asynkrona operationer och definitionen av kontrollfl\u00f6det i asynkron logik.\"\n      },\n      \"Vad \u00e4r hoisting i Javascript?\": {\n        \"Answer\": \"Hoisting \u00e4r ett koncept som inneb\u00e4r att Javascript som standard flyttar alla deklarationer till toppen av det aktuella omf\u00e5nget. P\u00e5 s\u00e5 s\u00e4tt kan en variabel anv\u00e4ndas innan den har deklarerats. Observera att Javascript bara flyttar deklarationer och inte initialiseringar.\"\n      },\n      \"Vad \u00e4r en closure i Javascript?\": {\n        \"Answer\": \"En closure \u00e4r en inre funktion som har tillg\u00e5ng till variablerna i den yttre (omslutande) funktionens scope-kedja. En closure har tillg\u00e5ng till variabler i tre scope, n\u00e4mligen: variabler i sitt eget scope, variabler i den omslutande funktionens scope och globala variabler.\"\n      }\n    }\n<\/script><br \/>\n\n\n    <style>\n        .accordion-box .heading {\n            text-align: center;\n        }\n    \n        .accordion-box p {\n            margin: 0;\n            padding: 0;\n        }\n    \n        .accordion-box .accordion {\n            white-space: unset;\n            background: none;\n            cursor: pointer;\n            padding: 24px 34px 0px 34px;\n            width: 100%;\n            text-align: left;\n            outline: none;\n            transition: 0.4s;\n            font-family: Montserrat;\n            font-style: normal;\n            font-weight: normal;\n            font-size: 18px;\n            line-height: 28px;\n            letter-spacing: 0.02em;\n            color: #000;\n            border: none;\n            display: flex;\n            justify-content: space-between;\n            margin-bottom: 10px;\n        }\n\n        .accordion-box .accordion:focus{\n            box-shadow:none !important;\n        }\n    \n        .accordion-box hr {\n            margin: 20px 32px 0px 32px;\n        }\n    \n        .accordion-box .panel {\n            padding: 0 34px 0px 34px;\n            \/* background-color: white; 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M\u00e5nga g\u00e5nger har tekniken banat v\u00e4g f\u00f6r framg\u00e5ng f\u00f6r f\u00f6retag i den moderna v\u00e4rlden. Dess p\u00e5verkan \u00e4r obestridlig. Fr\u00e5n tegel- och murbrukf\u00f6retag till digitala f\u00f6retag, alla har anpassat sig till den digitala eran (eller h\u00e5ller f\u00f6r n\u00e4rvarande p\u00e5 att g\u00f6ra det). Allt vi ser i [&hellip;]<\/p>\n","protected":false},"author":25,"featured_media":74598,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"blog_post.php","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[253,258,254],"class_list":["post-89210","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software-and-technology","tag-javascript","tag-software-development","tag-web-development"],"acf":[],"_links":{"self":[{"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/posts\/89210","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/comments?post=89210"}],"version-history":[{"count":4,"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/posts\/89210\/revisions"}],"predecessor-version":[{"id":89214,"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/posts\/89210\/revisions\/89214"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/media\/74598"}],"wp:attachment":[{"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/media?parent=89210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/categories?post=89210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/staging.devsdata.com\/sv\/wp-json\/wp\/v2\/tags?post=89210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}