javascript - 除了特定键之外，是否可以使用扩展运算符(三个点)？

Question

展开运算符是否具有异常功能？喜欢:

  originalObject = {
    key1: '',
    key2: '',
    key3: ''
  }

  const clonedOriginalObject = {
    ...object,
    // except key2
  }

所以我要排除的是 clonedObject只包含 key1 和 key2

Answer 1

您可以使用 Destructuring_assignment省略 key2并获得 rest :

originalObject = {
  key1: "",
  key2: "",
  key3: ""
};

const { key2, ...clonedOriginalObject } = originalObject;

console.log(clonedOriginalObject);