Created
January 21, 2011 18:48
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<div id="the_div"> | |
<ul id="the_list"> | |
<li id="the_item">Click me!</li> | |
</ul> | |
</div> | |
<p id="log"></p> | |
<script type="text/javascript" charset="utf-8"> | |
function log(string){ | |
document.getElementById('log').innerHTML += (string + '<br/>'); | |
} | |
document.getElementById('the_div').addEventListener( | |
'click', function(){ log('the_div!') }, false); | |
document.getElementById('the_list').addEventListener( | |
'click', function(){ log('the_list!') }, false); | |
document.getElementById('the_item').addEventListener( | |
'click', function(){ log('the_item!'); event.stopPropagation();}, false); | |
</script> | |
<!-- | |
1. Change the addEventListener calls so that the events occur in the following order. | |
the_div! the_item! the_list! | |
<script type="text/javascript" charset="utf-8"> | |
function log(string){ | |
document.getElementById('log').innerHTML += (string + '<br/>'); | |
} | |
document.getElementById('the_div').addEventListener( | |
'click', function(){ log('the_div!') }, true); | |
document.getElementById('the_list').addEventListener( | |
'click', function(){ log('the_list!') }, false); | |
document.getElementById('the_item').addEventListener( | |
'click', function(){ log('the_item!') }, true); | |
</script> | |
2. Change the addEventListener calls so that the events occur in the following order. | |
the_item! the_list! the_div! | |
<script type="text/javascript" charset="utf-8"> | |
function log(string){ | |
document.getElementById('log').innerHTML += (string + '<br/>'); | |
} | |
document.getElementById('the_div').addEventListener( | |
'click', function(){ log('the_div!') }, false); | |
document.getElementById('the_list').addEventListener( | |
'click', function(){ log('the_list!') }, false); | |
document.getElementById('the_item').addEventListener( | |
'click', function(){ log('the_item!') }, false); | |
</script> | |
3. Change the addEventListener calls so that the events occur in the following order. | |
the_item! (no other events) | |
<script type="text/javascript" charset="utf-8"> | |
function log(string){ | |
document.getElementById('log').innerHTML += (string + '<br/>'); | |
} | |
document.getElementById('the_div').addEventListener( | |
'click', function(){ log('the_div!') }, false); | |
document.getElementById('the_list').addEventListener( | |
'click', function(){ log('the_list!') }, false); | |
document.getElementById('the_item').addEventListener( | |
'click', function(){ log('the_item!'); event.stopPropagation();}, false); | |
</script> | |
--> |
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