object oriented javascript web form

Posted on 2016-09-14
Last Modified: 2016-09-15
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!
Question by:userTester
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 3
LVL 43

Expert Comment

by:zephyr_hex (Megan)
ID: 41798907
This isn't a question.  This is a job request.

Author Comment

ID: 41798914

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!
LVL 43

Accepted Solution

zephyr_hex (Megan) earned 500 total points
ID: 41798928
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:
Online Training Solution

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action. Forget about retraining and skyrocket knowledge retention rates.


Author Comment

ID: 41798950
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?

Author Comment

ID: 41799033

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.


Author Comment

ID: 41799099

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
LVL 43

Expert Comment

by:zephyr_hex (Megan)
ID: 41800048
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.

Author Closing Comment

ID: 41800276
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!

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Learn by example how to specify CSS selectors for Selenium WebDriver test automation software.
Color can increase conversions, create feelings of warmth or even incite people to get behind a cause. If you want your website to really impact site visitors, then it is vital to consider the impact color has on them.
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…
Learn how to create flexible layouts using relative units in CSS.  New relative units added in CSS3 include vw(viewports width), vh(viewports height), vmin(minimum of viewports height and width), and vmax (maximum of viewports height and width).

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question