een scripttaal die veel gebruikt wordt om webpagina's interactief te maken en webapplicaties te ontwikkelen

<span class="mw-page-title-main">JavaScript</span>

JavaScript

<p><b>JavaScript</b> is een veelgebruikte <a href="/nl/Scripttaal" title="Scripttaal" class="wl">scripttaal</a> om <a href="/nl/Webpagina" title="Webpagina" class="wl">webpagina</a>'s interactief te maken en <a href="/nl/Webapplicatie" title="Webapplicatie" class="wl">webapplicaties</a> te ontwikkelen. Naast <a href="/nl/HyperText_Markup_Language" title="HyperText Markup Language" class="wl">HTML</a> en <a href="/nl/Cascading_Style_Sheets" title="Cascading Style Sheets" class="wl">CSS</a> is JavaScript een van de kerntechnologieën van het <a href="/nl/Wereldwijde_web" title="Wereldwijde web" class="mw-redirect wl">wereldwijde web</a>.</p>

<div id="sjabloon_zie_artikel" style="padding:0.5em; margin-bottom:0.5em; border-bottom:1px solid #aaa; font-size:95%;" role="note" about="#mwt1"><span><span><img loading="lazy" alt="1rightarrow_blue.svg" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ee/1rightarrow_blue.svg/15px-1rightarrow_blue.svg.png" decoding="async" data-file-width="480" data-file-height="480" data-file-type="drawing" height="15" width="15" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ee/1rightarrow_blue.svg/23px-1rightarrow_blue.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ee/1rightarrow_blue.svg/30px-1rightarrow_blue.svg.png 2x"></span></span> <i>Niet te verwarren met <a href="/nl/Java_(programmeertaal)" title="Java (programmeertaal)" class="wl">Java (programmeertaal)</a>.</i>
</div>
<div class='mobile-collapse'><header class="mobile-collapse-header mobile-collapse-btn"><b>Quick facts: JavaScript, Paradigma, Verschenen, Ontworpen ...</b> <span class='arrow'>▼</span></header> <table class="infobox mobile-collapse-element" cellpadding="1" cellspacing="1"> 
<tbody><tr><th class="infobox-kop notheme" style="background-color:beige;  text-align:center; font-size:120%;" colspan="3">JavaScript</th></tr>
<tr>








<td style="text-align:center; padding:3px 0 3px 0;" colspan="3"><span><a href="/nl/Bestand:Javascript_Logo.png" class="mw-file-description image media-thumb" data-hash="Bestand:Javascript_Logo.png"><img loading="lazy"alt="JavaScript" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Javascript_Logo.png/125px-Javascript_Logo.png" decoding="async" data-file-width="480" data-file-height="480" data-file-type="bitmap" height="125" width="125" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Javascript_Logo.png/188px-Javascript_Logo.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Javascript_Logo.png/250px-Javascript_Logo.png 2x"></a></span></td></tr>
<tr>
















<th><a href="/nl/Programmeerparadigma" title="Programmeerparadigma" class="wl">Paradigma</a></th>
<td colspan="2"><a href="/nl/Multi-paradigmaprogrammeertaal" title="Multi-paradigmaprogrammeertaal" class="wl">multi-paradigma</a>, <a href="/nl/Functionele_programmeertaal" title="Functionele programmeertaal" class="mw-redirect wl">functioneel</a>, <a href="/nl/Objectgeoriënteerd" title="Objectgeoriënteerd" class="wl">objectgeoriënteerd</a> (<a href="/nl/Prototype-gebaseerd_programmeren" title="Prototype-gebaseerd programmeren" class="wl">prototype-gebaseerd</a>)</td></tr>
<tr>
<th>Verschenen</th>
<td colspan="2">4 december 1995<span class="mw-ref reference" id="cite_ref-persbericht_1-0"><a href="#cite_note-persbericht-1" style="counter-reset: mw-Ref 1;"><span class="mw-reflink-text">[1]</span></a></span></td></tr>
<tr>
<th><span class="nowrap">Ontworpen door</span></th>
<td colspan="2">Brendan Eich</td></tr>
<tr>
<th><span class="nowrap">Ontwikkeld door</span></th>
<td colspan="2"><a href="/nl/Netscape_Communications_Corporation" title="Netscape Communications Corporation" class="wl">Netscape Communications Corporation</a>, <a href="/nl/Mozilla_Foundation" title="Mozilla Foundation" class="wl">Mozilla Foundation</a></td></tr>
<tr>
<th>Huidige versie</th>
<td colspan="2">ECMAScript 2021<span class="mw-ref reference" id="cite_ref-wikidata-1706f7f69abd4fae44ab0728582cfd60cf54226d-v3_2-0"><a href="#cite_note-wikidata-1706f7f69abd4fae44ab0728582cfd60cf54226d-v3-2" style="counter-reset: mw-Ref 2;"><span class="mw-reflink-text">[2]</span></a></span><span>&nbsp;</span><span class="mw-valign-text-top"><a href="/nl/Q2005?uselang=nl#P348" title="Bewerken op Wikidata" class="image wl"><img loading="lazy"alt="Bewerken op Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" data-file-width="20" data-file-height="20" data-file-type="drawing" height="10" width="10" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x"></a></span><br><small>juni 2021</small></td></tr>
<tr>
<th><a href="/nl/Typesysteem" title="Typesysteem" class="wl">Typesysteem</a></th>
<td colspan="2">dynamisch, zwak, duck-typing</td></tr>
<tr>
<th>Implementaties</th>
<td colspan="2">SpiderMonkey, Rhino</td></tr>
<tr>
<th>Dialecten</th>
<td colspan="2"><a href="/nl/ECMAScript" title="ECMAScript" class="wl">ECMAScript</a>, <a href="/nl/JScript" title="JScript" class="wl">JScript</a></td></tr>
<tr>








<th><span class="nowrap">Beïnvloed door</span></th>
<td colspan="2"><a href="/nl/Self_(programmeertaal)" title="Self (programmeertaal)" class="wl">Self</a>, <a href="/nl/C_(programmeertaal)" title="C (programmeertaal)" class="wl">C</a>, <a href="/nl/Scheme" title="Scheme" class="wl">Scheme</a></td></tr>
<tr>
<th>Invloed op</th>
<td colspan="2"><a href="/nl/ActionScript" title="ActionScript" class="wl">ActionScript</a>, <a href="/nl/JScript" title="JScript" class="wl">JScript</a>, <span class="new">JScript .NET</span></td></tr>
<tr>


<th><a href="/nl/Bestandsextensie" title="Bestandsextensie" class="wl">Bestandsextensies</a></th>
<td colspan="2">js</td></tr>
<tr>
<th><a href="/nl/Website" title="Website" class="wl">Website</a></th>
<td colspan="2"><a rel="mw:ExtLink nofollow" href="https://developer.mozilla.org/en-US/docs/Web/JavaScript" class="external text" target="_blank">Mozilla</a></td></tr>
<tr>

















































































































































































































<td class="infobox-kop center notheme" style="background-color:beige; " colspan="3">
<table cellspacing="0" cellpadding="0">
<tbody><tr><td style="vertical-align:middle;"><b>Portaal</b><span>&nbsp;</span> <span class="noviewer"><a href="/nl/Bestand:Portal.svg" class="mw-file-description image wl" title="Portaalicoon"><img loading="lazy"alt="Portaalicoon" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Portal.svg/22px-Portal.svg.png" decoding="async" data-file-width="36" data-file-height="32" data-file-type="drawing" height="20" width="22" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Portal.svg/33px-Portal.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Portal.svg/44px-Portal.svg.png 2x"></a></span> <span>&nbsp;</span></td>
<td class="ta-left"><b><a href="/nl/Portaal:Informatica" title="Portaal:Informatica" class="wl">Informatica</a>  </b></td></tr>
</tbody></table></td></tr>


</tbody></table> <footer class='mobile-collapse-footer mobile-collapse-btn'><b>Close</b> <span class='arrow'>▲</span></footer></div>
<figure class="mw-halign-right wiki-thumb"><a href="/nl/Bestand:JavaScript_screenshot.png" class="mw-file-description image media-thumb" data-hash="Bestand:JavaScript_screenshot.png"><img loading="lazy" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/91/JavaScript_screenshot.png/240px-JavaScript_screenshot.png" decoding="async" data-file-width="520" data-file-height="460" data-file-type="bitmap" height="212" width="240" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/91/JavaScript_screenshot.png/360px-JavaScript_screenshot.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/91/JavaScript_screenshot.png/480px-JavaScript_screenshot.png 2x" alt="JavaScript_screenshot.png"></a><figcaption>Code met "form" tags.</figcaption></figure>


JavaScript is een veelgebruikte scripttaal om webpagina's interactief te maken en webapplicaties te ontwikkelen. Naast HTML en CSS is JavaScript een van de kerntechnologieën van het wereldwijde web. 