Math.abs(value) Last updated: 16. May 2026

Turns any number into a positive number. If positive no change, if negative the value is multiplied by -1.

See also: Math.ceil Math.floor Math.round

Name	Type	Description
value	number	Value to make positive.

A positive number

Example

#JS is mixed HTML (or other text file) with inline JavaScript with # starting and ending each inline statement.

// expected output: 5
#Math.abs(-5)#

// expected output: 5
#Math.abs(5)#

// expected output: 3.14
#Math.abs(-3.14)#

The #JS code above produces the output shown below:

// expected output: 5
5
// expected output: 5
5
// expected output: 3.14
3.14

JS is normal JavaScript either running in the browser or on the Docly™ server.

write(Math.abs(-5));
write("\n");
write(Math.abs(5));
write("\n");
write(Math.abs(-3.14));
/* Expected output:
5
5
3.14
*/

The JS code above produces the output shown below:

5
5
3.14