javascript how to make a number positive code example

Example 1: js make value positive

Math.abs(-4)//returns 4
Math.abs(4)//returns 4

Example 2: javascript convert minus to plus

var x = 20;
x *= -1;

Example 3: javascript convert minus to plus

var posNum = (num < 0) ? num * -1 : num; // if num is negative multiple by negative one ...