1. @DomName('WebGL2RenderingContext.blendEquationSeparate')
  2. @DocsEditable()
  3. @Experimental()
void blendEquationSeparate(int modeRGB, int modeAlpha)

Source 

@DomName('WebGL2RenderingContext.blendEquationSeparate')
@DocsEditable()
@Experimental() // untriaged
void blendEquationSeparate(int modeRGB, int modeAlpha) =>
    _blink.BlinkWebGL2RenderingContext.instance
        .blendEquationSeparate_Callback_2_(this, modeRGB, modeAlpha);