Math.abs Examples

The general syntax for this method is:

   Math.abs(number)

This method returns the positive value of a number, which can be printed or stored in a variable. abs works on both integer and decimal values.

Numerical strings can also be evaluated, but should be avoided as a best practice.

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   let num = Math.abs(-3);
   console.log(num);

   console.log(Math.abs(4.44));
   console.log(Math.abs('-3.33'));

   console.log(Math.abs(24/-3));
   // 24/-3 = -8

   3
   4.44
   3.33
   8

Math.abs also works on arrays, but to make the process work, we must combine it with the map array method. The syntax for this is:

   arrayName.map(Math.abs)

Note that Math.abs takes no argument when applied to an array.

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   let numbers = [-2, 3, -4.44, "8.88"];

   let positiveArray = numbers.map(Math.abs);

   console.log(positiveArray);

   [2, 3, 4.44, 8.88]