Determine whether two arrays are equal (regardless of order)

Function compare(arr1, arr2) {// compare(arr1, arr2); Let tempArr = [...arr2] if (arr1 instanceof Array && arr2 instanceof Array) {return arr1.length == arr2.length &&arr1. every((item_1) => {// Let delIndex = 0 // Let result = false if (isNaN(item_1)) {result = tempArr.some((item_2, index) => { if (isNaN(item_2)) { delIndex = index return true } return false }) } else { delIndex = tempArr.indexOf(item_1) result = delIndex ! = -1 } tempArr.splice(delIndex, 1) return result }) } else { return false } } var obj = {}; var arr = []; var nan = NaN; var a = [1, 2, 3, obj, arr, nan]; var b = [obj, arr, 3, 2, 1, nan]; console.log(compare(a, b));Copy the code