根据数组验证 javascript 对象键

Question

给定以下数组

const validKeyNames = ['name', 'gender', 'hasTheForce']

是否可以检查对象键是数组元素之一。

我希望能够做类似的事情：

{ name: 'Luke Skywalker', gender: 'Male', hasTheForce: true } // => true
{ name: 'James Brown', gender: 'Male', hasTheFunk: true } // => false

Answer 1

您可以使用every()onObject.Keys()并检查数组中是否存在键includes()

const validKeyNames = ['name', 'gender', 'hasTheForce']
var a = { name: 'Luke Skywalker', gender: 'Male', hasTheForce: true }
var b = { name: 'James Brown', gender: 'Male', hasTheFunk: true } 

function check(obj, arr) {
  return Object.keys(obj).every(e => arr.includes(e));
}

console.log(check(a, validKeyNames))
console.log(check(b, validKeyNames))