I'm trying to access the top of my footer, but I keep encountering this error message: Cannot read property 'top' of null
Here is the HTML code:
<footer class="footer" role="complementary" id="myfooter">
</footer>
And in jQuery:
var topoffooter = $('#myfooter').offset().top;
Can anyone provide assistance with this issue?
ISSUE
It seems like the problem arises when your script is unable to locate the DOM element. The element needs to be present in the DOM before it can be used by JavaScript.
TROUBLESHOOTING
Instead of the line
var topoffooter=$('#myfooter').offset().top;alert($('#myfooter').length);
The length must be greater than zero for it to function properly. If not, we are on the right track to resolving the issue.
RESOLUTION
1) To resolve this, you can place the scripts just before the closing of the body tag - </body> - RECOMMENDED
2) Alternatively, execute your scripts on the document (DOM) ready event using jQuery's
$(document).ready() http://api.jquery.com/ready/
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