Comments on: JSValidate: Form Validation Library

By: DrJ

DrJ — Mon, 09 Mar 2009 23:39:06 +0000

Based on Fabio Zendhi Nagao fValidator, you can also check formcheck.js for mootools. It can perform validation via regex or through custom functions. There is a lot of options and the errors can be displayed using tips or with css.

Here is some demos:
http://mootools.floor.ch/en/labs/

regards.

By: brian dichiara

brian dichiara — Sun, 18 Nov 2007 16:04:47 +0000

I thought i’d touch base on some of the comments to hope clear up a few things:

Library Size: Yes it’s a bit large and does require Scriptaculous and Prototype. My next release will have a much more scaled down version that uses smarter code and utilizes those libraries a lot better. As for requiring the other libraries, well, I think they are great libraries, they help you code javascript faster and more cross-browser, I would recommend everyone include them on every site they do. If you don’t like them, there are plenty of other good validation libraries out there. Pick one.

In my final release, there will be many more options as to what happens when validation occurs (alert box, change input style, general message at the top, etc.). I want the library to cover almost ever feature people are using to validate on the web these days.

The email validation expression has been updated to the RFC 2822 Standard in the latest beta. I got a lot of complaints about this and I’m sorry for not being up to par with the latest standards.

Field matching and min/max length will also be in the next release, along with a custom function validater that accept any separate function’s return of true/false.

The reason for using classes such as jsrequired is to keep from invading other people’s classes they’ve already created. As for requiring a class, well, this script was designed with the non-javascript programmer in mind. It’s the easiest way to implement. And why not use the title attribute? Because title is not XHTML compliant for input fields.

Please also note that this is still BETA. I know the web has really run that term into the ground and doesn’t really mean what it used to anymore, however I’m serious when I say that I am NOT finished with this. The site was designed to encourage people to test and provide feedback such as what I have received. I appreciate all the downloads, promotion and support. I hope this script turns out to be everything developers look for in a simple javascript validation script.

By: phpsourcecode

phpsourcecode — Tue, 30 Oct 2007 11:53:14 +0000

http://phpsourcecode.blogspot.com
http://phpsourcecode.blogspot.com
http://phpsourcecode.blogspot.com

By: Eric the .5b

Eric the .5b — Mon, 08 Oct 2007 18:45:38 +0000

I like the general premise, as it’s close to some code I wrote a little while back. However, why not just use simpler class names like “Required” and “ValidEmail”? And why use the alt attribute instead of the title attribute (though that’s a more minor consideration)?

By: Will Peavy

Will Peavy — Mon, 08 Oct 2007 15:48:11 +0000

@ex-lion tamer — thanks for posting that link. The ‘really easy field validation’ works great. I just added it to a form here ( http://valenciacc.edu/40years/nomination.cfm ) and had it running in no time

By: Bollysite

Bollysite — Mon, 08 Oct 2007 08:47:16 +0000

Check out this open source, regex based JavaScript validator

http://sourceforge.net/projects/js-validator/

By: Sam Goldman

Sam Goldman — Fri, 05 Oct 2007 13:54:54 +0000

@wafla: I agree with you about wForms. I used it for a large (huge) form project. I had to make numerous extensions and it was a snap.

By: Vanger

Vanger — Fri, 05 Oct 2007 10:37:19 +0000

Zapatec.Form supports:
* masked fields
* ajax validation
* limit keyboard input
* fully customizable error output
* theme driven
* etc etc etc

By: wafla

wafla — Fri, 05 Oct 2007 08:54:54 +0000

I found a good client side validation library. This does regular validations (including regex) and warnings, but has other nifty features too:
* conditional sections (with validation hookup)
* synchronize fields between each other
* validate on submit, or on loss of focus

So far I haven’t found anything better.
http://www.formassembly.com/wForms/

By: Neal

Neal — Fri, 05 Oct 2007 07:45:01 +0000

A very good form validation libray is qForms by Dan G. Switzer, II URL: http://www.pengoworks.com/index.cfm?action=get:qforms

By: skrd

skrd — Fri, 05 Oct 2007 07:33:30 +0000

I think extending core objects with prototype is not bad, Javascript is flexible and felxibility is good; of course one has to know what he or she is doing + afaik Prototype.js dares to do this, others are playing nicely, so I don’t see a problem here.

By: Todd

Todd — Fri, 05 Oct 2007 04:23:50 +0000

@yoink – there is nothing wrong with modifying the String and Array prototypes! Uggg, get with it. >:(

By: Michael McCorry

Michael McCorry — Fri, 05 Oct 2007 02:53:46 +0000

*moxiecode
*offering

By: Michael McCorry

Michael McCorry — Fri, 05 Oct 2007 02:53:01 +0000

I like the moxicode oddering Afraithe posted! However, it also doesn’t seem to do field matching (eg. for confirming password fields). If it had that I’d probably be using it everywhere. :)

By: yoink

yoink — Fri, 05 Oct 2007 00:25:35 +0000

Hmmm… Apart from the fact that it doesn’t validate the above mentioned email address, I wouldn’t use this for the following reasons:

1. Modifies the String and Array prototypes:
String.prototype.trim, Array.prototype.inArray, etc…
2. It pollutes the global name space with a lot of global functions.
3. Is rather large in size for what it does
4. Requires prototype / scriptaculous…
5. Needs pattern masking
6. Should be unobtrusive, rather than require class names to be attached to elements.

Apart from that, the code is well written, and logically structured, but really should be in it’s own namespace…

By: Fabio Zendhi Nagao

Fabio Zendhi Nagao — Thu, 04 Oct 2007 21:48:35 +0000

I’ve worked in the validation problem sometime ago. The solution is current out-of-date but covers most of the relevant problems like regular expression matching, field masking, etc…

Someone continued the work and added min chars and other features, but I forgot the name and url.

The URL for my work is: http://zend.lojcomm.com.br/fvalidator/

Hope it help!

By: Aaron N.

Aaron N. — Thu, 04 Oct 2007 19:10:57 +0000

I have a port of that Dexagogo validation library for Mootools:

http://clientside.cnet.com/wiki/cnet-libraries/03-jswidgets/01-cms-and-form-helpers#form.validator.js

By: Andi

Andi — Thu, 04 Oct 2007 18:28:20 +0000

Don’t forget to validate data on server. This is a must, client side validation is not. If you want to have full comfort, you must write your validator code twice. Zend’s PHP Framework provides some validotor classes: http://framework.zend.com/manual/en/zend.validate.html

By: Sasha Sklar

Sasha Sklar — Thu, 04 Oct 2007 17:23:38 +0000

The library doesn’t cover one of the most basic tasks of form validation – field matching. In fact, it doesn’t seem have any capability for rules involving more then one field.

Having a form validation system based on treating individual fields as objects will always fail because object-oriented thinking does not map to form validation. Form validation is a rules based task.

By: vance Dubberly

vance Dubberly — Thu, 04 Oct 2007 16:53:24 +0000

Doesn’t work in Safari. Also I am left wondering why anyone would bother putting up a whole “brand” for a library that really doesn’t do very much.

Lastly.. is the protoype world really going to continue with this disparate development where for every simple little thing I could need I have to go to a seperate maintaner to get it?