Question

I’m using LiveValidation (http://livevalidation.com/) to validate a form on my site in the client-side part.

However i’m having problems using the regular expressions:
the example on the website is not very clear and i’m trying to validate a field where i don’t want to reject numbers with this:

    var f1a = new LiveValidation('nome');
f1a.add( Validate.Format, { pattern: /[a-zA-Z]/i } );

or at least all non digit characters:
[^0-9] ???

are my regular expressions wrong?
or am i using wrongly the live validation with reg exp?

Thanks!

Answer 1

This regex matches input that is all alphabets.

/^[a-z]+$/i

The + is necessary for it to match multiple characters. Without it, the regex matches the first character and stops.

I recommend this website. It has a lot of samples and you can test the regex.

the i in the regex is the ignoreCase flag. When specified, matches are made irrespective of case.