除特定键外，是否可以使用扩展运算符（三个点）？

Question

价差操作员是否具有例外功能？喜欢：

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

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

所以我clonedObject唯一的例外是只包含key1和key2

Answer 1

您可以使用Destructuring_assignment省略key2并获取rest：

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

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

console.log(clonedOriginalObject);