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POMoving up multiple parents in jQuery - more efficient way?
 

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    <p>So, I have a navigation that is a list and has sublists and sublists.</p> <p>Basically, the nav is by default collapsed, but if people click on a page that's in a sublist, I want to show the parent list. And if it's a sublist of a sublist, I need both parent lists to show. I have it set up, but, I don't like putting 5 .parent().parent() 's to traverse upward to expand the list. Is there a more efficient way?</p> <p>the HTML:</p> <pre><code>&lt;div id="lesson-sidebar"&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="index.html"&gt;Welcome to Beat Basics and Beyond&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="table-of-contents.html"&gt;What's in this course?&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="defining-your-beat.html" class="active"&gt;Defining Your Beat&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="boundaries-of-your-beat.html"&gt;Boundaries of Your Beat&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="the-beat-description.html"&gt;The Beat Description&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="build-your-own-beat-description.html"&gt;&lt;span class="ital"&gt;Activity:&lt;/span&gt; Build Your Own Beat Description&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li&gt;&lt;a href="getting-started.html"&gt;Getting Started&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="debrief-your-predecessor.html"&gt;Debrief Your Predecessor&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="predecessor-top-five-tips.html"&gt;&lt;span class="ital"&gt;Activity:&lt;/span&gt; List The Top Five Tips From Your Predecessor&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="covering-your-beat-with-the-internet.html"&gt;Covering Your Beat With The Internet&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="get-in-the-car-and-go.html"&gt;Get in the Car and Go&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="mapping-your-beat.html"&gt;Mapping Your Beat&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="read-the-clips.html"&gt;Read the Clips&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="activity-dissect-this-clip.html"&gt;&lt;span class="ital"&gt;Activity:&lt;/span&gt; Dissect This Clip&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="writing-your-first-article.html"&gt;Writing Your First Article&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="starting-cold-on-the-beat.html"&gt;Starting Cold on the Beat&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li&gt;&lt;a href="working-with-sources.html"&gt;Working With Sources&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="finding-sources.html"&gt;Finding Sources&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="diversify-your-sources.html"&gt;Diversify Your Sources&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="prospecting-for-stories-and-sources.html"&gt;Prospecting for Stories and Sources&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="building-relationships.html"&gt;Building Relationships&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="going-off-the-record.html"&gt;Going Off the Record&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li&gt;&lt;a href="developing-resources.html"&gt;Developing Resources to Help You on the Beat&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="develop-a-calendar-of-events.html"&gt;Develop a Calendar of Events&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="build-your-library.html"&gt;Build Your Library&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="learn-the-open-record-laws.html"&gt;Learn the Open Record Laws&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li&gt;&lt;a href="extra-resources.html"&gt;Extra Resources&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="beat-breakdown-tool.html"&gt;Beat Breakdown Tool&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="links-library.html"&gt;Links Library&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="general-resources-for-any-beat.html"&gt;General Resources for Any Beat&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="courts-and-criminal-justice-links.html"&gt;Courts and Criminal Justice Links&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="education-resources.html"&gt;Education Resources&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="local-government-links.html"&gt;Local Government Links&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="neighborhood-or-suburban-links.html"&gt;Neighborhood or Suburban Links&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="police-and-public-safety-links.html"&gt;Police and Public Safety Links&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="reporter-organizations.html"&gt;Reporter Organizations&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li&gt;&lt;a href="additional-reading.html"&gt;Additional Reading&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li&gt;&lt;a href="final-thoughts.html"&gt;Final Thoughts&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; </code></pre> <p>The jQuery:</p> <pre><code>function toggleSubmenu() { if ($(this).hasClass('submenu-hidden')) { $(this).parent().children('ul').slideToggle(); $(this).removeClass().addClass('submenu-visible'); } else if ($(this).hasClass('submenu-visible')) { $(this).parent().children('ul').slideToggle(); $(this).removeClass().addClass('submenu-hidden'); } } $('#lesson-sidebar ul ul').hide(); $('#lesson-sidebar ul ul ul').hide(); $('#lesson-sidebar ul:first-child').attr('id', 'rootlist'); $('#lesson-sidebar ul li:has("ul")').prepend('&lt;span class="submenu-hidden"&gt;&lt;/span&gt;').css('list-style','none'); $('#lesson-sidebar ul li a').each( function() { if ($(this).hasClass('active')) { // if it is a UL var length = $(this).parent().find("ul").length; alert(length); if (length == 0) { if ($(this).parent().parent().parent().children('span').hasClass('submenu-hidden')) { $(this).parent().parent().parent().children('ul').show(); $(this).parent().parent().parent().children('span').removeClass('submenu-hidden').addClass('submenu-visible'); } if ($(this).parent().parent().parent().parent().parent().children('span').hasClass('submenu-hidden')) { $(this).parent().parent().parent().parent().parent().children('ul').show(); $(this).parent().parent().parent().parent().parent().children('span').removeClass('submenu-hidden').addClass('submenu-visible'); } } if (length == 1) { $(this).parent().find('ul').slideToggle(); $(this).parent().children('span').removeClass('submenu-hidden').addClass('submenu-visible'); } } } ); $('ul#rootlist &gt; li span, ul#rootlist li ul li &gt; span').bind('click', toggleSubmenu); </code></pre> <p>Any and all help is majorly appreciated. </p>
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