UPDATE - Thanks @baoo for referring me to a similar question. I guess I should search more extensively on SO for similar questions, before making one of my own.
I am trying to sort an array using the 'sort' function in JS as follows :-
var arr = [4, 3, 2, 1, 10];
console.log(arr.sort());
However, instead of the expected output as [1, 2, 3, 4, 10], the actual output obtained is [1, 10, 2, 3, 4].
Upon searching on the Web, I found that the values are getting sorted as string.
However, the type of the elements is indeed a 'number', as could be verified with the following code :-
typeof(arr[0]) // outputs 'number'
Further, with the following code the expected output of [1, 2, 3, 4, 10] is indeed obtained :-
arr.sort(function(a, b) { return a - b; })
Could someone please throw some light on what exactly is happening here ?
Thanks.
function (a,b) { return String(a).localeCompare(b); }