JavaScript RegEx.test() conditional aborts/returns function early

Question

I have a simple class project where i'm doing some form validation. We have to use some basic regex expressions to validate input. I have this code in an external js file. I have a function that captures the onsubmit event, and returns the value of the validation function of whether or not to proceed with the postback. The problem is when i call the RegEx.test() method my validation functions stops and returns, and the postback proceeds inadvertently. Also strangly if i create a regex object using the "new RegEx()" the same thing happens. I'm lost as to why. Here's my code: ``` $(document).ready(function() { // onsubmit event $('form').submit( function() { return validation(); } ); // form validation function validation() { resetErrors(); //variables var validates = true; var errorString = ""; //var isEmail = new RegEx('^.+@.+\..+$'); // function stops here if line is uncommented and kicks off the postback? //alert("harro new regex?"); // does not run if above line is uncommented var…

Accepted Answer

you are missing a "p", it's RegExp not RegEx

```
var isEmail = new RegExp('^.+@.+\..+$');
```

But in general with these problems, just have Firebug or Chrome Developer Tools open (F12 in windows) and then you will see the cause of the error. If you write new Regex() in the console, it will tell you that Regex is not defined, if you start writing RegE..., it will autocomplete it for you to RegExp.

JavaScript RegEx.test() conditional aborts/returns function early

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