判断参数是否是其中之一

  • 正常写法 ```javascript function oneOf(value, validList) { for (let i = 0; i < validList.length; i++) { if (value === validList[i]) {
    1. return true;
    } } return false; }

validator(value) { return oneOf(value, [“small”, “large”, “default”]); },

  2. - 高级
  3. ```javascript
  4. function oneOf(value, validList) {
  5.    return validList.some((item) => {
  6.       return item === value;
  7.     });
  8. }