WebGLRenderingContext: getExtension() method

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

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

Syntax

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.

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