JavaScript random()Method
JavaScript Math ObjectExample
Return a random number between 0 (inclusive) and 1 (exclusive):
Math.random();
Output:
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Definition and Usage
The random() method returns a random number between 0 (inclusive) and 1 (exclusive).
Browser Support
All major browsers support the random() method
Syntax
Math.random()
Return Value
| Type | Description |
|---|---|
| Number | A pseudo-random number between 0.0 and 1.0 (exclusive). |
Technical Details
| JavaScript Version: | 1.0 |
|---|
More Examples
Example
In this example, we will get a random number between 1 and 10:
Math.floor((Math.random()*10)+1);
Output:
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Example
In this example, we will get a random number between 1 and 100:
Math.floor((Math.random()*100)+1);
Output:
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Example
The following function returns a number between min (inclusive) and max (exclusive):
function getRndInteger(min, max) {
return Math.floor(Math.random() * (max - min) ) + min;
}
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Example
The following function returns a number between min (inclusive) and max (inclusive):
function getRndInteger(min, max) {
return Math.floor(Math.random() * (max - min + 1) ) + min;
}
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Other Extensions