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POHow can I cycle through HTML select <option> values on click?
 

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  1. POHow can I cycle through HTML select <option> values on click?
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    <p>In a calendar app, I have a simple select that has option tag with values 0-11 for the corresponding months. I can cycle through the months one-way (from Dec to Jan), but I can't get it to work going the other way. It only shows Feb and Dec.</p> <p>Here's <a href="http://jsfiddle.net/mtJRn/19/" rel="nofollow">a jsfiddle</a> showing what I've already done.</p> <p>Here's the HTML:</p> <pre><code>&lt;select id="MonthName" class="form-control"&gt; &lt;option value="0"&gt;January&lt;/option&gt; &lt;option value="1"&gt;February&lt;/option&gt; &lt;option value="2"&gt;March&lt;/option&gt; &lt;option value="3"&gt;April&lt;/option&gt; &lt;option value="4"&gt;May&lt;/option&gt; &lt;!-- etc, through 11 --&gt; &lt;/select&gt; &lt;!-- 'Buttons' --&gt; &lt;span class="chevron chevronLeft floatLeft"&gt;◀&lt;/span&gt; &lt;span class="theMonth"&gt;Month&lt;/span&gt; &lt;span class="chevron chevronRight floatRight"&gt;▶&lt;/span&gt; </code></pre> <p>Here's the jQuery:</p> <pre><code>$('.chevron').on('click', function() { // This if works perfectly, and will reset to 11 once the selectedMonth is 0 if ($(this).hasClass('chevronLeft')) { var selectedMonth = $('#MonthName').val(); (selectedMonth != 0) ? $('#MonthName').val(selectedMonth - 1).trigger('change') : $('#MonthName').val(11).trigger('change'); } else { // This doesn't work, I tried declaring the variable locally, // different less/greater than expressions, but nothing works var selectedMonth = $('#MonthName').val(); (selectedMonth !== 11) ? $('#MonthName').val(selectedMonth + 1).trigger('change') : $('#MonthName').val(0).trigger('change'); } }); $('#MonthName').on('change', function() { var monthText = $('#MonthName option:selected').text(); $('.theMonth').text(monthText); }); </code></pre>
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