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WebGLRenderingContext: getExtension() method

files/en-us/web/api/webglrenderingcontext/getextension/index.md

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{{APIRef("WebGL")}}{{AvailableInWorkers}}

The WebGLRenderingContext.getExtension() method enables a WebGL extension.

Syntax

js-nolint
getExtension(name)

Parameters

  • name
    • : A {{jsxref("String")}} for the name of the WebGL extension to enable.

Return value

A WebGL extension object, or null if name does not match (case-insensitive) to one of the strings in {{domxref("WebGLRenderingContext.getSupportedExtensions")}}.

Examples

Once a WebGL extension is enabled, you are able to use the methods, properties or constants that this extension object provides.

js
const canvas = document.getElementById("canvas");
gl = canvas.getContext("webgl");

gl.getExtension("WEBGL_lose_context").loseContext();

WebGL extensions

Extensions for the WebGL API are registered in the WebGL Extension Registry. They are also listed in our WebGL API reference.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

  • {{domxref("WebGLRenderingContext.getSupportedExtensions()")}}
  • webglreport.com