function diffArray(arr1, arr2) { return arr1 .concat(arr2) .filter(item => !arr1.includes(item) || !arr2.includes(item)); }
const isEqual = (a, b) => JSON.stringify(a) === JSON.stringify(b); // Examples isEqual([1, 2, 3], [1, 2, 3]); // true isEqual([1, 2, 3], [1, '2', 3]); // false
//ES6 const array3 = [...array1, ...array2];
Array.prototype.equals = function(arr2) { return ( this.length === arr2.length && this.every((value, index) => value === arr2[index]) ); }; [1, 2, 3].equals([1, 2, 3]); // true [1, 2, 3].equals([3, 6, 4, 2]); // false
function arraysAreIdentical(arr1, arr2){ if (arr1.length !== arr2.length) return false; for (var i = 0, len = arr1.length; i < len; i++){ if (arr1[i] !== arr2[i]){ return false; } } return true; }
// For regular 1D array const array1 = [1,2,3,4] const array2 = [1,2,3,4] array1.join() === array2.join() // '1,2,3,4' === '1,2,3,4' // For anything more complex const array3 = [1,2,3,[1,2,3]] const array4 = [1,2,3,[1,2,3]] JSON.stringify(array3) === JSON.stringify(array4)