Javascript not sorting numeric arrays correctly

Posted in Tutorials

Javascript arrays have a sort method, but it does not sort numeric arrays as expected.  For example, this code …

sorts them as if they are string, rather than numeric as expected.  Weird.

Correct Way to Sort Numeric Arrays in Javascript

But fortunately, you can pass your own compare function to the sort method to get it to sort numeric arrays in a numeric fashion…

Now it will return the sortedArray as  [1, 4, 8, 10, 17].

 

---