Javascript validating numeric input

07 Nov

First, download the Java Script form validation script here.The zip file contains the javascript file, examples.You can write Java Script scripts to check the following validations.To get a string contains only numbers (0-9) we use a regular expression (/^[0-9] $/) which allows only numbers.The “validation descriptor” is nothing but a string specifying the type of validation to be performed.Each field in the form can have zero one or more validations. More info & downloads where Do My Validation One() and Do My Validation Two() are custom functions for validation.

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The Java Script class presented here makes the form validations many times easier.If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices.The following Javascript uses the test() method tests for a match in a string.We'll check each key event individually against each character, which the user enters in the textbox.Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.You can't use the numeric input, because, well, Java Script doesn't consider formatted number to be a number.The option is to use the non-numeric input but filter out any "problematic" chars.In the following example, I'm also handling the dot separator in case you need to accept fractions.As the text box is being edited, it also has to preserve the cursor position.If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware.