Created
November 11, 2011 19:26
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Exercise for JS Master Class (DOM Events)
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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!') }, true); | |
| document.getElementById('the_list').addEventListener( | |
| 'click', function(){ log('the_list!') }, true); | |
| document.getElementById('the_item').addEventListener( | |
| 'click', function(){ log('the_item!') }, true); | |
| </script> | |
| <!-- | |
| 1. Change the addEventListener calls so that the events occur in the following order. | |
| the_div! the_item! the_list! (change the 3rd param of the 2nd addEventListener to false) | |
| 2. Change the addEventListener calls so that the events occur in the following order. | |
| the_item! the_list! the_div! (change the 3rd param in each addEventListener to false (useCapture = false which is useBubble=true) | |
| 3. Change the addEventListener calls so that the events occur in the following order. | |
| the_item! (no other events) (change all 3rd params to false, and call event.stopPropagation() in the last addEventListener) | |
| --> |
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