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Showing content from https://webplatform.github.io/docs/javascript/Math/abs below:

abs · WebPlatform Docs

abs Summary

Returns the absolute value of a number (the value without regard to whether it is positive or negative). For example, the absolute value of -5 is the same as the absolute value of 5.

Syntax

Math.abs( number )

number: Required. The required number argument is a numeric expression for which the absolute value is needed.

Return Value

The absolute value of the number argument.

Examples

The following example illustrates the use of the abs function.

var s;
 var v1 = Math.abs(6);
 var v2 = Math.abs(-6);
 if (v1 == v2) {
     document.write("Absolute values are the same.");
 }
 else {
 document.write("Absolute values are different.");
 }