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The WebGLRenderingContext.getShaderSource() method of the WebGL API returns the source code of a WebGLShader as a DOMString.


DOMString gl.getShaderSource(shader);


A WebGLShader object to get the source code from.

Return value

A DOMString containing the source code of the shader.


var shader = gl.createShader(gl.VERTEX_SHADER);
gl.shaderSource(shader, originalSource);

var source = gl.getShaderSource(shader);


Specification Status Comment
WebGL 1.0
The definition of 'getShaderSource' in that specification.
Recommendation Initial definition.
OpenGL ES 2.0
The definition of 'glGetShaderSource' in that specification.
Standard Man page of the (similar) OpenGL API.

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 9 12 4.0 (2.0) 11 12 5.1
Feature Android Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support ? 25 4.0 (2.0) 1.0 ? 12 8.0

See also

Document Tags and Contributors

 Contributors to this page: fscholz
 Last updated by: fscholz,