Having trouble with regular expression in javascript not validating when it should

Question

Hello i am trying to validate some form input where the format needs to be.

GBR (Exactly) followed by [1-9] for 1 digit then [0-9] for 2 digits and then nothing else.

I am using it inside some jquery.

            jQuery(function(){
            jQuery("#P3_P_CODE").validate({
                expression: "if (VAL.match(/^\w[GBR]{1,3}[1-9]{1,1}\d[0-9]{1,1}$/)) return true; else return false;",
                message: "Should be a valid Project format"
            });
        });

Meaning that

/^\w[GBR]{1,3}[1-9]{1,1}\d[0-9]{1,1}$/

is my regular expression.

The problem that i am having is that no matter what i type into the input box i am still presented with an error message meaning that my regular expression must be incorrect.

I have tried several different combinations in my REGEXP to no avail.

Any help would be appreciated

this page will probably help you stackoverflow.com/questions/280759/… — wirey00
– wirey00, Commented Mar 11, 2013 at 18:15

a better oliver · Accepted Answer · 2013-03-11 18:14:55Z

2

/^GBR[1-9]\d\d$/

[GBR] means one of those characters.

answered Mar 11, 2013 at 18:14

a better oliver

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5 Comments

Paul Cunningham Over a year ago

I see what you mean :) i have added your changes but it is still not accepting a value of GBR101 for instance.

a better oliver Over a year ago

The regular expression works: example. What plugin are you using for validation?

Paul Cunningham Over a year ago

I am Using <script src="ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js" /> <script src="ajax.aspnetcdn.com/ajax/jquery.validate/1.11.0/…" />

a better oliver Over a year ago

According to the documentation there is no "expression" option.

Paul Cunningham Over a year ago

Ahhh briliant, so obviously no matter what i entered mine would of returned false, my mistake i'll see if i can find a library that includes an expression option.

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