如何通过比较JavaScript中的两个arrays的项目来判断是否存在不等项目？

Question

如何通过比较两个arrays的项目来判断是否存在不等项并返回true或false？

let freeDrive = ['58:0', '58:1', '58:22'];
let filterdDrive = ['58:0', '58:1', '58:2', '58:3', '58:4', '58:5', '58:6', '58:7'];

Answer 1

您可以通过迭代短数组并检查其所有值来做到这一点，每个 function 都很方便： https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Global_Objects/Array/every

例如

const checkInclude = (arr1, arr2) => {
  if (arr1.length > arr2.length) {
    return checkInclude (arr2, arr1)
  }
  return arr1.every(v => arr2.includes(v))
}

在 chrome 控制台中测试

让 freeDrive = ['58:0', '58:1', '58:22'];

让 filterdDrive = ['58:0', '58:1', '58:2', '58:3', '58:4', '58:5', '58:6', '58:7 '];

checkInclude(freeDrive, filterdDrive);

错误的