GPUCompilationMessage: length property

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The length read-only property of the GPUCompilationMessage interface is a number representing the length of the substring that the message corresponds to.


A number.

To be precise, length is the number of UTF-16 code units in the shader code substring that the message corresponds to. If the message corresponds to a single point rather than a substring, length will be 0.


  // ...
  const shaderModule = device.createShaderModule({
    code: shaders,

  const shaderInfo = await shaderModule.getCompilationInfo();
  const firstMessage = shaderInfo.messages[0];
  // ...

See the main GPUCompilationInfo page for a more detailed example.


# dom-gpucompilationmessage-length

Browser compatibility

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See also