Check If Two Arrays Have Same Elements Javascript Code Example

Example 1: check if 2 arrays are equal javascript

const a = [1, 2, 3]; const b = [4, 5, 6]; const c = [1, 2, 3];  function arrayEquals(a, b) {   return Array.isArray(a) &&     Array.isArray(b) &&     a.length === b.length &&     a.every((val, index) => val === b[index]); }  arrayEquals(a, b); // false arrayEquals(a, c); // true

Example 2: check if 2 arrays are equal javascript

var arraysMatch = function (arr1, arr2) {  	// Check if the arrays are the same length 	if (arr1.length !== arr2.length) return false;  	// Check if all items exist and are in the same order 	for (var i = 0; i < arr1.length; i++) { 		if (arr1[i] !== arr2[i]) return false; 	}  	// Otherwise, return true 	return true;  };

Example 3: javascript Compare two arrays regardless of order

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