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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, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported in Store apps (Windows 8 and Windows Phone 8.1). See Version Information.

Applies To: Math Object (JavaScript)

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