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POHow to use jQuery's on(..) to dynamically bind to multiple events
 

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  1. POHow to use jQuery's on(..) to dynamically bind to multiple events
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    <p>I am trying to create leverage jQuery's .on() (ex-live()) to bind multiple events. It is working for elements which exist on document.ready, but if i dynamically add a second link after page load, my event handler isn't triggered.</p> <p>This makes sense since the outer-most method iterates over the elements, and doenst listen for newly added DOM nodes, etc. The .on(..) is what listens for new DOM nodes, but requires an event name params, which I dont have until I have the DOM node.</p> <p>Seems like a chick and the egg sort of situation.</p> <p>Thoughts?</p> <pre><code>&lt;a href="/foo.html" class="js-test" data-test-events="['click', 'mouseover']"&gt;Test 1&lt;/a&gt; &lt;a href="/foo.html" class="js-test" data-test-events="['mouseout']"&gt;Test 2&lt;/a&gt; $(function() { $('.js-test').each(function() { var $this = $(this); var e, events = $this.data('test-events'); for(e in events) { $this.on(events[e], function() { console.log("hello world!") }); } }); }); </code></pre> <p>Update, The following does seem work either; $(this) doesnt appear to be in the right scope.</p> <pre><code>&lt;a href="/foo.html" class="js-test" data-test-events="click mouseover"&gt;Test 1&lt;/a&gt; &lt;a href="/foo.html" class="js-test" data-test-events="mouseout"&gt;Test 2&lt;/a&gt; $(function() { $('.js-test').on($(this).data('test-events'), function() { // call third party analytics with data pulled of 'this' }); }); </code></pre> <hr> <p>Update 1:</p> <p>I think my best bet will be to create special .on methods for all the methods I want to support like so:</p> <pre><code>$(document).on('click', '.js-test[data-test-events~="click"]' function(event) { record(this, event); }); $(document).on('mouseover', '.js-test[data-test-events~="mouseover"]', function(event) { record(this, event); }); ... etc ... </code></pre>
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    1. COWhat are you really trying to do? The elements defining events without any functions doesn't make sense unless you really want any event to just log `"hello world"` (run same function)
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    2. COIm hooking into an analytics API - so when Authors edit the page, there is an interface that lets them say "When this element triggers event X,Y,Z and I want to send data to the analytics API -- the data is set on other data-* attributes which aren't relevant to the mechanics of the problem.
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