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
314 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
[X]
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
  • 2
3 Comments
 
LVL 83

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 83

Expert Comment

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

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

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

Nothing in an HTTP request can be trusted, including HTTP headers and form data.  A form token is a tool that can be used to guard against request forgeries (CSRF).  This article shows an improved approach to form tokens, making it more difficult to…
This article demonstrates how to create a simple responsive confirmation dialog with Ok and Cancel buttons using HTML, CSS, jQuery and Promises
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…
Suggested Courses

630 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