Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

Math.random Function (JavaScript)

Returns a pseudorandom number between 0 and 1.

Math.random( ) 

The pseudorandom number generated is from 0 (inclusive) to 1 (exclusive), that is, the returned number can be zero, but it will always be less than one. The random number generator is seeded automatically when JavaScript is first loaded.

Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards. See Version Information.

Applies To: Math Object (JavaScript)

Community Additions

Show:
© 2015 Microsoft