How to Compare two Arrays are Equal using Javascript? [duplicate]

Question

I want position of the array is to be also same and value also same.

var array1 = [4,8,9,10]; var array2 = [4,8,9,10]; 

I tried like this

var array3 = array1 === array2   // returns false 

Answer 1

You could use Array.prototype.every().(A polyfill is needed for IE < 9 and other old browsers.)

var array1 = [4,8,9,10]; var array2 = [4,8,9,10];  var is_same = (array1.length == array2.length) && array1.every(function(element, index) {     return element === array2[index];  }); 

THE WORKING DEMO.

Answer 2

A less robust approach, but it works.

a = [2, 4, 5].toString(); b = [2, 4, 5].toString();  console.log(a===b);