random()  Math  class method JS Home  <<  JS Reference  <<  Math  <<  random()

Description

Returns a floating point random number between 0 (inclusive) and 1 (exclusive).

  • Like all class methods random() should be used on the class rather than an instance of the class.

Syntax

Signature Description
Math.random()Returns a floating point random number between 0 (inclusive) and 1 (exclusive).

Parameters

None.

Examples

The code below displays random() usage.


// Store results in an array.
var randomValues = new Array(6);

randomValues[0] = Math.random();
randomValues[1] = Math.random();
randomValues[2] = Math.random();
randomValues[3] = Math.random();
randomValues[4] = Math.random();
randomValues[5] = Math.random();

alert(randomValues);  

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JavaScript Advanced Tutorials - Lesson 4 - Math

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Math

Class Properties
E
LN2
LN10
LOG2E
LOG10E
PI
SQRT1_2
SQRT2
Instance Properties
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Class Methods
abs()
acos()
asin()
atan()
atan2()
ceil()
cos()
exp()
floor()
log()
max()
min()
pow()
random()
round()
sin()
sqrt()
tan()
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