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15623322
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5
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2013-03-25T19:42:43.660
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2014-01-30T14:32:56.103
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2014-01-30T14:32:56.103
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1185698
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2420970
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text
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<p>In collaboration with @drzaus we've come up with the following jQuery plugin.</p> <h1>jQuery.getSelector</h1> <pre><code>!(function ($, undefined) { /// adapted http://jsfiddle.net/drzaus/Hgjfh/5/ var get_selector = function (element) { var pieces = []; for (; element && element.tagName !== undefined; element = element.parentNode) { if (element.className) { var classes = element.className.split(' '); for (var i in classes) { if (classes.hasOwnProperty(i) && classes[i]) { pieces.unshift(classes[i]); pieces.unshift('.'); } } } if (element.id && !/\s/.test(element.id)) { pieces.unshift(element.id); pieces.unshift('#'); } pieces.unshift(element.tagName); pieces.unshift(' > '); } return pieces.slice(1).join(''); }; $.fn.getSelector = function (only_one) { if (true === only_one) { return get_selector(this[0]); } else { return $.map(this, function (el) { return get_selector(el); }); } }; })(window.jQuery); </code></pre> <h2>Minified Javascript</h2> <pre><code>// http://stackoverflow.com/questions/2420970/how-can-i-get-selector-from-jquery-object/15623322#15623322 !function(e,t){var n=function(e){var n=[];for(;e&&e.tagName!==t;e=e.parentNode){if(e.className){var r=e.className.split(" ");for(var i in r){if(r.hasOwnProperty(i)&&r[i]){n.unshift(r[i]);n.unshift(".")}}}if(e.id&&!/\s/.test(e.id)){n.unshift(e.id);n.unshift("#")}n.unshift(e.tagName);n.unshift(" > ")}return n.slice(1).join("")};e.fn.getSelector=function(t){if(true===t){return n(this[0])}else{return e.map(this,function(e){return n(e)})}}}(window.jQuery) </code></pre> <h2>Usage and Gotchas</h2> <pre><code><html> <head>...</head> <body> <div id="sidebar"> <ul> <li> <a href="/" id="home">Home</a> </li> </ul> </div> <div id="main"> <h1 id="title">Welcome</h1> </div> <script type="text/javascript"> // Simple use case $('#main').getSelector(); // => 'HTML > BODY > DIV#main' // If there are multiple matches then an array will be returned $('body > div').getSelector(); // => ['HTML > BODY > DIV#main', 'HTML > BODY > DIV#sidebar'] // Passing true to the method will cause it to return the selector for the first match $('body > div').getSelector(true); // => 'HTML > BODY > DIV#main' </script> </body> </html> </code></pre> <h2>Fiddle w/ QUnit tests</h2> <p><a href="http://jsfiddle.net/CALY5/5/" rel="noreferrer">http://jsfiddle.net/CALY5/5/</a></p>
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