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<!DOCTYPE html>
<html><head><meta name="description" content="addEventListener() doesn't run the same function more than once if added with the same condition">  <meta charset="utf-8">  <meta name="viewport" content="width=device-width">  <title>addEventListener() example</title></head><body>   <button>Click</button></body></html>

 
function showDialog() {
    console.log('showDialog');}​function hideDialog() {    console.log('hideDialog');}​var button = document.querySelector('button');​// Different conditionsbutton.addEventListener('click', showDialog, true);button.addEventListener('click', showDialog, false);​// Same conditionsbutton.addEventListener('click', hideDialog, false);button.addEventListener('click', hideDialog, false);

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:reset - destroy state and start afresh :history - list current session history :load <url> - to inject new DOM :load <script_url> - to inject external library load also supports following shortcuts:
jquery, underscore, prototype, mootools, dojo, rightjs, coffeescript, yui.
eg. :load jquery :clear - to clear contents of the console :about jsconsole

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