2 Options to Show All JavaScript on Page

Here are 2 options to quickly view all the JavaScript used on a web page. Could come in handy when trying to find event handlers or specific code without searching through individual files.

1. Option 1: Bookmarklet – A bookmarklet (drag it to your bookmarks) by Ichiro Hiroshi to see all JavaScript’s used on the web page includes script links only and inline code.
2. Option 2: Web Developer Toolbar – A Firefox add-in that allows you to view all JavaScript loaded on page, it includes all content of include scripts and inline code.

The Bookmarklet

Just drag this button into your bookmarks then run on any page to see scripts.

The Code

javascript: (function () {
    s = document.getElementsByTagName('SCRIPT');
    tx = '';
    sr = [];
    for (i = 0; i < s.length; i) {
        with(s.item(i)) {
            t = text;
            if (t) {
                tx = t;
            } else {
                sr.push(src)
            };
        }
    };
    with(window.open()) {
        document.write('' (sr.join("n"))"nn-----nn"
        tx '<script src="http://jsbeautifier.org/beautify.js"></script><script>with(document.getElementById("t")){value=js_beautify(value);with(style){width="99%";height="99%";borderStyle="none";}};</script>');
        document.close();
    }
})();</code></pre>
<h2>Firefox Developer Toolbar</h2>
<p>Install the Firefox Add-on.</p>
<p><img class="alignnone size-full wp-image-9453" title="webdeveloper-toolbar" src="https://dab1nmslvvntp.cloudfront.net/wp-content/uploads/jquery4u/2011/11/webdeveloper-toolbar.jpg" alt="webdeveloper-toolbar" width="703" height="101" /></p>
<p>Visit any web page, select from the toolbar > Information > View JavaScript.</p>
<p><img class="alignnone size-full wp-image-9455" title="firefox-show-javascript" src="https://dab1nmslvvntp.cloudfront.net/wp-content/uploads/jquery4u/2011/11/firefox-show-javascript.jpg" alt="firefox-show-javascript" width="650" height="607" /></p>
<p>It shows you all JavaScript used on the page <strong>including the content within the included .js files</strong> too.</p>
<p><img class="alignnone size-full wp-image-9456" title="firefox-show-javascript2" src="https://dab1nmslvvntp.cloudfront.net/wp-content/uploads/jquery4u/2011/11/firefox-show-javascript2.jpg" alt="firefox-show-javascript2" width="650" height="580" /></p>
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