round() Math class method
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round()
Description
Returns the value of the specified number rounded to the nearest integer.
- Like all class methods
round()should be used on the class rather than an instance of the class.
Syntax
| Signature | Description |
|---|---|
Math.round(value) | Returns the value of the specified number rounded to the nearest integer. |
Parameters
| Parameter | Description |
|---|---|
value | The value you wish to find the round() of:
|
Examples
The code below displays round() usage.
// Store results in an array.
var roundValues = new Array(6);
roundValues[0] = Math.round(1.49);
roundValues[1] = Math.round(-10.5);
roundValues[2] = Math.round('100.5');
roundValues[3] = Math.round('five');
roundValues[4] = Math.round();
roundValues[5] = Math.round(null);
alert(roundValues);
Related Tutorials
JavaScript Advanced Tutorials - Lesson 4 - Math