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What's the difference..?

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Join Date: Sep 2009

Posts: 16

Reputation: DARK_BYTE is an unknown quantity at this point

Solved Threads: 0

DARK_BYTE

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Newbie Poster

What's the difference..?

Oct 22nd, 2009

Hi can someone please explain to me what is the difference between writing

onclick="confirmLink()"

and

onclick="return confirmLink()"

I tried both and they did the same thing and I am confused since the lazy fellows from my university have given me old notes in which they randomly include the "return" sometimes and sometimes they don't in the various examples.

 Help with Code Tags 
 JavaScript / DHTML / AJAX Syntax (Toggle Plain Text) 
<html>
  <head>
    <title>Handling onClick for links</title>
    <script>
      <!--
      function confirmLink()
      {
      alert("This is the Mastering JavaScript and JScript Home Page.");
      return confirm("Are you sure you want to load this document?")
      } 
      //-->
    </script>
  </head>
  <body>
  <h1>Handling onclick for links</h1>
  <p>
    <a href="http://www.jaworks.com/javascript" onclick="confirmLink()">Asks you
       to confirm your selection of this link.</a>
  </p>
  </body>
</html>
<html>
  <head>
    <title>Handling onClick for links</title>
    <script>
      <!--
      function confirmLink()
      {
      alert("This is the Mastering JavaScript and JScript Home Page.");
      return confirm("Are you sure you want to load this document?")
      } 
      //-->
    </script>
  </head>
  <body>
  <h1>Handling onclick for links</h1>
  <p>
    <a href="http://www.jaworks.com/javascript" onclick="confirmLink()">Asks you
       to confirm your selection of this link.</a>
  </p>
  </body>
</html>

Last edited by DARK_BYTE; Oct 22nd, 2009 at 4:30 pm.

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Join Date: Aug 2006

Posts: 319

Reputation: Luckychap is on a distinguished road

Solved Threads: 42

Luckychap

Offline

Posting Whiz

Oct 22nd, 2009

NO, both will behave differently if you click 'cancel' on confirmation dialog instead of clicking 'ok'.

Now its ur job to figure out something from this.

When you think you have done a lot, then be ready for YOUR downfall.

•

Join Date: Aug 2006

Posts: 319

Reputation: Luckychap is on a distinguished road

Solved Threads: 42

Luckychap

Offline

Posting Whiz

Oct 22nd, 2009

Try this example:

 Help with Code Tags 
 html Syntax (Toggle Plain Text) 
<html>
  <head>
    <title>Handling onClick for links</title>
    <script>
      <!--
      function confirmLink()
      {
      alert("This is the Mastering JavaScript and JScript Home Page.");
      return confirm("Are you sure you want to load this document?")
      } 
      //-->
    </script>
  </head>
  <body>
  <h1>Handling onclick for links</h1>
  <p>
    <a href="http://www.jaworks.com/javascript" onclick="">without retrun.</a><br>
    <a href="http://www.jaworks.com/javascript" onclick="return">with only retrun.</a><br>
    <a href="http://www.jaworks.com/javascript" onclick="return true;">with retrun true.</a><br>
    <a href="http://www.jaworks.com/javascript" onclick="return false">And with retrun false.</a><br>
  </p>
  </body>
</html>
<html>
  <head>
    <title>Handling onClick for links</title>
    <script>
      <!--
      function confirmLink()
      {
      alert("This is the Mastering JavaScript and JScript Home Page.");
      return confirm("Are you sure you want to load this document?")
      } 
      //-->
    </script>
  </head>
  <body>
  <h1>Handling onclick for links</h1>
  <p>
    <a href="http://www.jaworks.com/javascript" onclick="">without retrun.</a><br>
    <a href="http://www.jaworks.com/javascript" onclick="return">with only retrun.</a><br>
    <a href="http://www.jaworks.com/javascript" onclick="return true;">with retrun true.</a><br>
    <a href="http://www.jaworks.com/javascript" onclick="return false">And with retrun false.</a><br>
  </p>
  </body>
</html>