1. @DomName('WebGLRenderingContext.vertexAttribPointer')
  2. @DocsEditable()
void vertexAttribPointer(int indx, int size, int type, bool normalized, int stride, int offset)

Source 

@DomName('WebGLRenderingContext.vertexAttribPointer')
@DocsEditable()
void vertexAttribPointer(int indx, int size, int type, bool normalized,
        int stride, int offset) =>
    _blink.BlinkWebGLRenderingContext.instance
        .vertexAttribPointer_Callback_6_(
            this, indx, size, type, normalized, stride, offset);