|
|
JavaScript isFinite() Function
 JavaScript Functions
Definition and Usage
The isFinite() function is used to check if a value is a finite, legal number.
Syntax
| Parameter |
Description |
| value |
Required. The value to be tested |
Example
Example
Check for finite numbers:
<script type="text/javascript">
document.write(isFinite(123)+ "<br />");
document.write(isFinite(-1.23)+ "<br />");
document.write(isFinite(5-2)+ "<br />");
document.write(isFinite(0)+ "<br />");
document.write(isFinite("Hello")+ "<br />");
document.write(isFinite("2005/12/12")+ "<br />");
</script>
|
The output of the code above will be:
true
true
true
true
false
false
|
Try it yourself »
|
JavaScript Functions
The Creators of XMLSpy are Pleased to Announce
|
|
|
