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object oriented javascript web form

Web form, OOP approach.

A basic checkout form, inputs: fullname, email, shipto, shiptozip, cardnumber, monthyear, cvc, a checkbox when clicked displays an alternate billto and billtozip option, and, of course, a submit button.

Professional client-side input validation coding is required.

My main objective is to see how OOP is used in javascript, and it must be usable for a typical live website and something that can be upsized for larger forms. I would like to see just pure javascript, so no libraries and frameworks, please.

Must provide a working example so I can see it work!
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userTester
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userTester
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zephyr_hex (Megan)DeveloperCommented:
This isn't a question.  This is a job request.
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userTesterAuthor Commented:
zephyr_hex

So the question would be, how do you use JavaScript OOP in a real application? A web form is as basic as you can get.

It's not a job request!
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zephyr_hex (Megan)DeveloperCommented:
So the question would be, how do you use JavaScript OOP in a real application?

That is not the question you asked.  You gave requirements for a job that is usually done on a hired basis.

If you're revising your question to the more generic "how is JavaScript OOP validation done in a real application?", here ya go: http://www.bymichaellancaster.com/blog/javascript-object-oriented-simple-form-validation/
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userTesterAuthor Commented:
Thanks, zephyr_hex, I will try the code out!

My apologies if my question wasn't clear enough, here's the part where I mention my intention:
My main objective is to see how OOP is used in javascript

The other part of my question is whether this approach would work for a real live website, or is there a lot more to it than what the article provides?
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userTesterAuthor Commented:
zephyr_hex

I am not familiar with all the code in the example, so I am not sure how to use this object and unable to assess its validity. If you can help me see it working that would be ideal.

Thanks!
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userTesterAuthor Commented:
zephyr_hex

You'll be glad to know that I managed to figure it out and it looks spot on. I wish I could ask a few questions about the details of the example at  http://www.bymichaellancaster.com/blog/javascript-object-oriented-simple-form-validation?1
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zephyr_hex (Megan)DeveloperCommented:
What that article shows is how to validate user input on what is called "client side" -- that means before the input is sent to the server.  It's impossible to answer whether or not that validation is sufficient -- because it totally depends on what your requirements are.  The article is meant to show you how OOP validation is done, not give a comprehensive validation suite.  There are already tools built for that, such as this one and this one.

You will also need to consider server side validation, which is, in fact, far more important than client side validation (which can be circumvented).  Server side validation can not be circumvented and it's your last gateway to prevent invalid or malicious data into your database.

If you have specific questions about how the demo works, I encourage you to open an EE question and ask your specific question.  In many cases, it's helpful if you include a code snippet so we know what you're talking about.  Or, if the demo doesn't cover a topic you'd like to know more about, please open an EE question and ask.  So, for example, if it doesn't show how to validate a checkbox and you can't figure that part out, then open a question and ask how to validate a checkbox -- and include your current JavaScript and so we can see where the new logic would best fit in.
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userTesterAuthor Commented:
Thanks zephyr_hex, that example does a lot for me. I will play around with the code and get to know it well. I am in touch with the author of that article and might shoot some questions his way as well. Thanks again!
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