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Showing content from https://developer.mozilla.org/zh-TW/docs/Web/JavaScript/Reference/Global_Objects/Promise/reject below:

Promise.reject() - JavaScript | MDN

Promise.reject()

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Promise.reject(new Error("fail")).then(
  function (error) {
    // not called
  },
  function (error) {
    console.log(error); // Stacktrace
  },
);

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