This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.
The OES_vertex_array_object.isVertexArrayOES() method of the WebGL API returns true if the passed object is a WebGLVertexArrayObject object.
isVertexArrayOES(arrayObject)
arrayObjectA WebGLVertexArrayObject (VAO) object to test.
A GLboolean indicating whether the given object is a WebGLVertexArrayObject object (true) or not (false).
const ext = gl.getExtension("OES_vertex_array_object");
const vao = ext.createVertexArrayOES();
ext.bindVertexArrayOES(vao);
// …
ext.isVertexArrayOES(vao);
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
isVertexArrayOES |
24 | 17 | 25 | 15 | 8 | 25 | 25 | 14 | 8 | 1.5 | 4.4 | 8 |
WebGLRenderingContext.getExtension()WebGLRenderingContext.vertexAttribPointer()WebGL2RenderingContext.isVertexArray()
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https://developer.mozilla.org/en-US/docs/Web/API/OES_vertex_array_object/isVertexArrayOES