vue js判断两个数组是否相等

           arrEuqalse(arr1, arr2) {

				if (!arr1 || !arr2) {
					return false;
				}

				if (arr1.length != arr2.length) {
					return false;
				}

				for (var i = 0; i < arr2.length; i++) {
					if (arr1.indexOf(arr2[i]) == -1) {
						return false;
					}
				}

				for (var i = 0; i < arr1.length; i++) {
					if (arr2.indexOf(arr1[i]) == -1) {
						return false;
					}
				}
				return true;
			}