How to sort an array of integers correctly
By default, the sort method sorts elements alphabetically. To sort numerically just add a new method which handles numeric sorts (sortNumber, shown below) -
var numArray = [140000, 104, 99];numArray.sort(function(a, b) { return a - b;});console.log(numArray);Documentation:
Mozilla Array.prototype.sort() recommends this compare function for arrays that don't contain Infinity or NaN. (Because Infinity - Infinity is NaN, not 0).
Also examples of sorting objects by key.
Just building on all of the above answers, they can also be done in one line like this:
var numArray = [140000, 104, 99];numArray = numArray.sort(function (a, b) { return a - b; });//outputs: 99, 104, 140000
I am surprised why everyone recommends to pass a comparator function to sort(), that makes sorting really slow!
To sort numbers, just create any TypedArray:
var numArray = new Float64Array([140000, 104, 99]);numArray = numArray.sort();console.log(numArray)