Solved

How to check if my form field contains a hyphen when the form field is not empty or null?

Posted on 2013-06-14
3
309 Views
Last Modified: 2013-06-14
Experts,

I've been toiling over this seemingly simple concept for too long.

Can anyone help me modify my code below so that it does the following:

1) Checks the value of "alt_user"
2) If "alt_user" is empty or null, do nothing
2) If the value of "alt_user" is not empty or null then, check to see if the value of "alt_user" contains a "-".

I am trying to ensure that all entries submitted that are not empty or null have a hyphen.

Cheers in advance!

	echo'
	<script>
		function validateForm1()
		{
			var x=document.forms["step1"]["alt_user"].value;
			if (!x==null || !x==""){
				if(x.indexOf(\'-\') === -1){
				  alert("Please select a valid name for Alternate User 1.");
				  return false;
				}
			}
		}
	</script>';

Open in new window

0
Comment
Question by:evibesmusic
  • 2
3 Comments
 
LVL 82

Accepted Solution

by:
Dave Baldwin earned 500 total points
ID: 39249252
Try this.
	echo '<script>
		function validateForm1()
		{
			var x=document.forms["step1"]["alt_user"].value;
			if (x != null && x != ""){
				if(x.indexOf("-") === -1){
				  alert("Please select a valid name for Alternate User 1.");
				  return false;
				}
			}
		}
	</script>';

Open in new window

0
 

Author Closing Comment

by:evibesmusic
ID: 39249259
Perfect! Thank you Dave!
0
 
LVL 82

Expert Comment

by:Dave Baldwin
ID: 39249402
You're welcome, thanks for the points.
0

Featured Post

6 Surprising Benefits of Threat Intelligence

All sorts of threat intelligence is available on the web. Intelligence you can learn from, and use to anticipate and prepare for future attacks.

Join & Write a Comment

This article shows how to create and access 2-dimensional arrays in JavaScript.  It includes a tutorial in case you are just trying to "get your head wrapped around" the concept and we'll also look at some useful tips for more advanced programmers. …
This article will give core knowledge of JavaScript and will head in to your first JavaScript program. I am Durvesh Naik and I am here to deal with this series of JavaScript. I will teach you JavaScript in part wise , as its quite boring to read big…
The viewer will learn the basics of jQuery, including how to invoke it on a web page. 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.: (CODE)
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…

746 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

Need Help in Real-Time?

Connect with top rated Experts

9 Experts available now in Live!

Get 1:1 Help Now