Forum : How to test for bad numbers using JavaScript?
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View Manju S Reddy 's Profile

How to test for bad numbers using JavaScript?

How to test for bad numbers using JavaScript?
Asked by Manju S Reddy | Mar 22, 2010 |  Reply now
Replies (1)
View teacher siliconindia 's Profile
Hi Manjunath,
the global method, "isNaN()" can tell if a number has gone bad.
var temperature = parseFloat(myTemperatureWidget.value);
if(!isNaN(temperature)) {
alert("Please enter a valid temperature.");
}
Mar 22, 2010

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