如何通過比較JavaScript中的兩個arrays的項目來判斷是否存在不等項目？

Question

如何通過比較兩個arrays的項目來判斷是否存在不等項並返回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

您可以通過迭代短數組並檢查其所有值來做到這一點，每個 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 控制台中測試

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

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

checkInclude(freeDrive, filterdDrive);

錯誤的