针对数组验证JavaScript对象键 [英] Validate javascript object keys against an array

问题描述

给出以下数组

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

是否可以检查对象键是否为数组元素之一.

我希望能够做类似的事情:

I want to be able to do something like:

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

推荐答案

您可以在 Object.Keys()上使用 every()并检查键是否存在于数组中使用 includes()

You can use every() on Object.Keys() and check if key exists in array using 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))

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