1. @DomName('WebGLRenderingContext.isProgram')
  2. @DocsEditable()
bool isProgram(Program program)

Source 

@DomName('WebGLRenderingContext.isProgram')
@DocsEditable()
bool isProgram(Program program) => _blink.BlinkWebGLRenderingContext.instance
    .isProgram_Callback_1_(this, program);