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POMerging 4 similar click functions into one
 

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    <p>Here are 4 functions I use to improve the usability of a table by:</p> <ol> <li>If cell contains a checkbox and you click outside of a checkbox</li> <li>The the <code>tr</code> contains <code>data-url</code> then the whole row is "clickable" with CSS hover effect and redirects on click.</li> <li>If the last column in the table contains a relative/absolute URL then also redirects on click.</li> <li>Check all checkboxes.</li> </ol> <p>Here's my code:</p> <pre><code>// Click table cell auto check checkbox $('table tr td').has("input[type=checkbox]").click(function(event) { // Onl call this if click outside of the checkbox itself if (event.target.type !== 'checkbox') { $(':checkbox', this).trigger('click'); } }); // Table row click $('table tr[data-url]').each(function(){ var url = $(this).attr("data-url"); if(url.length){ $(this) .addClass("clickable") .find("td").click(function(){ window.location = url; return false; }); } }); // Double click row, open edit link $('table:not(.noDoubleClick) tr td').dblclick(function(e) { var linkEl = $(this).parents('tr').find('td:last-child a'); var linkElHref = linkEl.attr('href'); // Check if has href and http protocol if(!linkElHref.length || linkEl.prop('protocol').indexOf("http") !== 0){ e.preventDefault(); return false; } if (linkElHref &amp;&amp; linkEl.attr('onclick') === undefined &amp;&amp; !linkEl.hasClass("popme")) { document.location = linkElHref; } else { linkEl.click(); } }); // Check all checkboxes $('table input[type=checkbox][name^="checkall"]').live("click",function() { var parent = $(this).parents('table'); if(!$(this).parents('table').length){ parent = $(this).parents("form"); } parent.find(':checkbox[name^="' + $(this).attr("data-name") + '"]').prop("checked", this.checked); }); </code></pre> <p><strong>Q:</strong> how can I modify this into one function so that jquery only has to search for tables once?</p> <p><a href="http://jsfiddle.net/g9uLV/" rel="nofollow">Example jsfiddle</a></p> <p>Thanks for every bodies suggestions I have ended up taking a slightly <a href="http://jsfiddle.net/g9uLV/11/" rel="nofollow">different approach</a>:</p> <pre><code>$('table').each(function(){ var $table= $(this), $cell, $row; // TABLE ROWS $table.find('tr').each(function(){ $row = $(this); // Row click redirect to data-url var url = $row.attr("data-url"); if(url &amp;&amp; url.length){ $row.addClass("clickable").find("td").click(function(){ window.location = url; return false; }); } // TABLE HEADING CELLS $row.find('th, thead td').each(function(){ $cell = $(this); // Check all checkboxes $cell.find('input.checkall').live("click",function() { var parent = $(this).parents('table'); if(!$(this).parents('table').length){ parent = $(this).parents("form"); } parent.find(':checkbox[name^="' + $(this).attr("data-name") + '"]').prop("checked", this.checked); }); }); // TABLE CELLS $row.find('td').each(function(){ $cell = $(this); // Check checbox onClick if($cell.find("input[type=checkbox]")){ $cell.click(function(e) { if(e.target.type !== 'checkbox') $(':checkbox', this).trigger('click'); }); } // Double click open edit link if(!$table.hasClass("noDoubleClick")){ $cell.dblclick(function(e){ var linkEl = $(this).parents('tr').find('td:last-child a'); var linkElHref = linkEl.attr('href'); // Check if has href and http protocol if(linkElHref &amp;&amp; (!linkElHref.length || linkEl.prop('protocol').indexOf("http") !== 0)){ e.preventDefault(); return false; } if (linkElHref &amp;&amp; linkEl.attr('onclick') === undefined &amp;&amp; !linkEl.hasClass("popme")) { document.location = linkElHref; } else { linkEl.click(); } }); } }); // end CELLS }); // end ROWS }); // end TABLE </code></pre>
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