ECMAScript

<p>ECMAScript  is a standard for scripting languages, including <a href="/facts/JavaScript/XhhIIEsl">JavaScript</a>, <a href="/facts/JScript/HyuCUU2D">JScript</a>, and <a href="/facts/ActionScript/xtDQb0wR">ActionScript</a>. It is best known as a JavaScript standard intended to ensure the <a href="/facts/Interoperability/7WgqUbXU">interoperability</a> of <a href="/facts/Web_page/5JK7xQLe">web pages</a> across different <a href="/facts/Web_browser/2pfyymLs">web browsers</a>. It is standardized by <a href="/facts/Ecma_International/HCbnIU6n">Ecma International</a> in the document <a href="https://www.ecma-international.org/publications-and-standards/standards/ecma-262/">ECMA-262</a>.
</p><p>ECMAScript is commonly used for <a href="/facts/Client-side_scripting/psjqGKBx">client-side scripting</a> on the <a href="/facts/World_Wide_Web/wvnTrWFq">World Wide Web</a>, and it is increasingly being used for server-side applications and services using runtime environments such as <a href="/facts/Node.js/FKzhV4Qa">Node.js</a>, <a href="/facts/Deno_(software)/m1xyHIPE">Deno</a> and <a href="/facts/Bun_(software)/StggJde8">Bun</a>.
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ECMAScript open-in-new

ECMAScript