www.webdeveloper.com
Results 1 to 3 of 3

Thread: cannot get property 'value' of null

Hybrid View

  1. #1
    Join Date
    Feb 2013
    Posts
    2

    Question cannot get property 'value' of null

    hello i got some code which used to work in my previous javascripts and now it's giving me this damn error again i don't see what i am doing wrong could someone tell me please.
    Code:
    <html>
    <head>
    <script>
    function fill() {
    	document.getElementById("content").innerHTML="";
    	var rij=parseFloat(document.getElementById("aap").value);
    	var kolom=parseFloat(document.getElementById("kolom").value);
    	for (i=0;i<kolom;i++) {
    		for (j=0;j<rij;j++) {
    			document.getElementById("content").innerHTML+="<input type='number' value='0' id='m"+i+j+"'>";
    		}
    		document.getElementById("content").innerHTML+="<br>";
    	}
    }
    </script>
    </head>
    <body id="content">
    <input type="number" id="aap" value="2" /> x <input type="number" id="kolom" value='3'/><br>
    <input type="button" onclick="fill()" value="matrix">
    </body>
    </html>

  2. #2
    Join Date
    Mar 2007
    Location
    U.K.
    Posts
    1,127
    Quote Originally Posted by gelatine1 View Post

    document.getElementById("content").innerHTML="";
    The first thing you're doing is wiping-out the entire content of <body>, so how can you expect to refer to what no longer exists?
    Where used, return should be executed unconditionally and always as the last statement in the function.

    That's my signature, it's not part of the damn post!

  3. #3
    Join Date
    Feb 2013
    Posts
    2

    Thumbs up thank you

    Ohhh stupid from me i didn't see that. thanks for your help.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
HTML5 Development Center



Recent Articles