CODEWITHSUNDEEP
regexactionscript-3apache-flex
Hailey
Hailey

Reputation: 157

What will be the Regular Expression for Numeric Value(with or without decimal) in actionscript3

I want to validate a numeric value(with or without decimal point). If I use 

textInput.restrict = "0-9.";

it will only restrict to enter a number with 0-9 or '.'(decimal point). But it doesn't restrict to enter double decimal(e.g-123.3.3)which is not a valid number.

So,what should be the regex for such scenario ? Thank you!

Upvotes: 0

Views: 58

Answers (1)

Tom Lord
Tom Lord

Reputation: 28305

To define the regular expression in ActionScript 3.0:

var decimalPattern:RegExp = /^\d+(\.\d+)?$/;

Or, if you prefer:

var decimalPattern:RegExp = new RegExp("^\\d+(\\.\\d+)?$");

This pattern says "some digits, possibly followed by a '.' and more digits".

If you want a more generic solution, with consideration for things like negative numbers and commas (e.g. -13,386.91), then you could use: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/mx/validators/NumberValidator.html

Upvotes: 1

Related Questions