javascript 使用对象扩展运算符的可选属性

Posted 2021-05-03

const includeC = false;
const includeD = true;

const objectWithOptionalProp = {
  a: 1,
  b: 2,
  ...(includeC && {
    c: 3
  }),
  ...(includeD && {
    d: 4
  }),
} // -> { a: 1, b: 2, d: 4}