window屬性：onrejectionhandled

onrejectionhandled屬性

該Window.onrejectionhandled屬性是處理rejectionhandled事件的事件處理程序，當(dāng)Promises被拒絕時引發(fā)。

onrejectionhandled屬性語法

window.addEventListener("rejectionhandled", function(event) { ... });
window.onrejectionhandled = function(event) { ...};

onrejectionhandled屬性示例

window.onrejectionhandled = function(e) {
  console.log(e.reason);
}

規(guī)范

瀏覽器兼容性