Here is a simple example of what I'm trying to do, I have code in HTML and my aim is to disable the three hyperlinks #validate
,#organize
and #export
:
<p id="menuitems" class="inline textcenter">
<a id="import" href="javascript:void(0);" onclick="switchScreen('Import');">IMPORT</a> >>
<a id="validate" href="javascript:void(0);" onclick="switchScreen('Validate');">VALIDATE</a> >>
<a id="organize" href="javascript:void(0);" onclick="switchScreen('Organize');">ORGANIZE</a> >>
<a id="export" href="javascript:void(0);" onclick="switchScreen('Export');">EXPORT</a>
</p>
When I'm trying to call the following, nothing happend. I'm using jQuery 1.11.4 and I've read that the methods for disabling event listeners have changed since 1.7. So I would like to know if there is an error in my JavaScript code below or some new changes:
$('#validate').off('click');
$('#organize').off('click');
$('#export').off('click');
One way would be to temporarily set the onclick to null, but store the original element onclick in the element or jquery object (e.g. data
). With a helper function you can switch the elements on or off:
function setEnabled($a, Enabled ){
$a.each(function(i, a){
var en = a.onclick !== null;
if(en == Enabled)return;
if(Enabled){
a.onclick = $(a).data('orgClick');
}
else
{
$(a).data('orgClick',a.onclick);
a.onclick = null;
}
});
}
Which can be called with something like:
setEnabled($('#validate'), false);
(also works on jquery objects with multiple elements because of the each)
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