Abs similar to jquery

Get the absolute value of a number in Javascript

Return the absolute value of a number:

Math.abs(-90.83);
// Output
90.83

More Examples
Return the absolute value of different numbers:

var a = Math.abs(90.83);
var b = Math.abs(-90.83);
var c = Math.abs(null);
var d = Math.abs("Hello");
var e = Math.abs(2+3);

The result of a,b,c,d, and e will be:

90.83
90.83
0
NaN
5