Web platform features explorer

Math and numbers

Widely available since 2018-01-29
Tags: javascript Groups: JavaScript > Primitive types

The number type (and Number object) represents floating-point numbers, such as 42 or -4.201, while the Math API contains mathematical functions and constants. JavaScript can also represent boundless negative and positive values as Infinity or not-a-number as NaN (as in 0 * Infinity).

Learn more

Browser support

  • Chrome 1 Released on 2008-12-11
  • Chrome Android 18 Released on 2012-06-27
  • Edge 12 Released on 2015-07-29
  • Firefox 1 Released on 2004-11-09
  • Firefox for Android 4 Released on 2011-03-29
  • Safari 1 Released on 2003-06-23
  • Safari on iOS 1 Released on 2007-06-29