jQuery each always sort it?

Question

I have this object in JS:

var list = {134 : \"A\",140 : \"B\",131 : \"C\"}

I run it with:

jQuery.each(list, function(key, v         


        

Answer 1

Object's properties do not have a defined order, as per the specification.

The mechanics and order of enumerating the properties (...) is not specified.

Source.

Therefore, ECMA implementations do not have to iterate in any order. In fact, the order varies in different browsers/versions.