The label read-only property of the GPURenderBundleEncoder interface is a string providing a label that can be used to identify the object, for example in GPUError messages or console warnings.

This can be set by providing a label property in the descriptor object passed into the originating GPUDevice.createRenderBundleEncoder() call, or you can get and set it directly on the GPURenderBundleEncoder object.

A string. If no label value has previously been set, getting the label returns an empty string.

Setting and getting a label via GPURenderBundleEncoder.label:

const renderBundleEncoder = device.createRenderBundleEncoder({
  colorFormats: [presentationFormat],
});

renderBundleEncoder.label = "myrenderbundleencoder";
console.log(renderBundleEncoder.label); // "myrenderbundleencoder"

Setting a label via the originating GPUDevice.createRenderBundleEncoder() call, and then getting it via GPURenderBundleEncoder.label:

const renderBundleEncoder = device.createRenderBundleEncoder({
  colorFormats: [presentationFormat],
  label: "myrenderbundleencoder",
});

console.log(renderBundleEncoder.label); // "myrenderbundleencoder"

• The WebGPU API