files/en-us/web/api/webglrenderingcontext/compileshader/index.md
{{APIRef("WebGL")}}{{AvailableInWorkers}}
The WebGLRenderingContext.compileShader() method of the WebGL API compiles a GLSL shader into binary data so that it can be used by a {{domxref("WebGLProgram")}}.
compileShader(shader)
shader
None ({{jsxref("undefined")}}).
shader is not of type WebGLShader.const shader = gl.createShader(gl.VERTEX_SHADER);
gl.shaderSource(shader, shaderSource);
gl.compileShader(shader);
{{Specifications}}
{{Compat}}