how to access div with period in its class in jquery -


i'm trying access div have period in class i.e clazz.id, length returned 0

i have made following jsfiddle illustrate issue

jsfiddle

here html

<div id="activity-operation" style="" class="edit-form">     <form class="form1">         <div class="server-error" style="display: none;"></div>         <fieldset>             <div>                 <input id="c49_id" name="id" type="hidden" class="myclasscustom" value="1">             </div>             <div>                 <input id="c49_subject_id" name="subject_id" type="hidden" class="myclasscustom" value="37">             </div>             <div>                 <input id="c49_activityvalidationtype" name="activityvalidationtype" type="hidden" value="">             </div>             <div class="input swfield-name">                 <div class="inputtext">                     <label for="c49_name" style="float:right;">activity name</label>                 </div>                 <div class="inputcontent">                     <input id="c49_name" name="name" readonly="readonly" disabled="disabled" type="text">                 </div>                 <div class="input-error" style="display:none;"></div>             </div>             <div class="input swfield-subject.name">                 <div class="inputtext">                     <label for="c49_subject_name" style="float:right;">subject</label>                 </div>                 <div class="inputcontent">                     <input id="c49_subject_name" name="subject_name" readonly="readonly" disabled="disabled" type="text">                 </div>                 <div class="input-error" style="display:none;"></div>             </div>             <div class="input swfield-activitytype.id">                 <div class="inputtext">                     <label for="c49_activitytype_id" style="float:right;">select type</label>                 </div>                 <div class="inputcontent">                     <select id="c49_activitytype_id" name="activitytype_id">                         <option value="asig">assignment</option>                         <option value="clas">class</option>                         <option value="quiz">quiz</option>                     </select>                 </div>                 <div class="input-error" style="display:none;"></div>             </div>             <div class="input swfield-term.id">                 <div class="inputtext">                     <label for="c49_term_id" style="float:right;">select term</label>                 </div>                 <div class="inputcontent">                     <select id="c49_term_id" name="term_id">                         <option value="fa12">fall 2012</option>                         <option value="fa13">fall 2013</option>                         <option value="sp12">spring 2012</option>                         <option value="sp13">spring 2013</option>                     </select>                 </div>                 <div class="input-error" style="display:none;"></div>             </div>             <div class="input swfield-grading">                 <div class="inputtext">                     <label for="c49_grading" style="float:right;">grading</label>                 </div>                 <div class="inputcontent">                     <input id="c49_grading" name="grading" type="text">                 </div>                 <div class="input-error" style="display:none;"></div>             </div>             <div class="input swfield-class.id error">                 <div class="inputtext">                     <label for="c49_clazz_id" style="float:right;">select class</label>                 </div>                 <div class="inputcontent">                     <select id="c49_clazz_id" name="clazz_id">                         <option value="">select</option>                         <option value="22">10</option>                         <option value="10">9b</option>                         <option value="11">9c</option>                         <option value="40">a</option>                         <option value="41">b</option>                         <option value="24">c1</option>                         <option value="25">c2</option>                         <option value="26">c3</option>                         <option value="27">c4</option>                         <option value="87">obj 1</option>                         <option value="86">rawalpindi board</option>                     </select>                 </div>                 <div class="input-error" style="display:none;">class required</div>             </div>             <div class="input swfield-section.id">                 <div class="inputtext">                     <label for="c49_section_id" style="float:right;">select section</label>                 </div>                 <div class="inputcontent">                     <select id="c49_section_id" name="section_id" readonly="readonly" disabled="disabled">                         <option value="select"></option>                     </select>                 </div>                 <div class="input-error" style="display:none;"></div>             </div>             <div class="input swfield-description">                 <div class="inputtext">                     <label for="c49_description" style="float:right;">description</label>                 </div>                 <div class="inputcontent">                     <textarea id="c49_description" name="description" type="text"></textarea>                 </div>                 <div class="input-error" style="display:none;"></div>             </div>         </fieldset>         <div class="buttons">             <input class="orangebutton swformsubmitbutton" type="submit" value="submit">             <input class="greybutton swformcancelbutton" type="submit" value="cancel">         </div>     </form> </div>

and these selectors i'm trying

alert($("form.form1").find(".swfield-clazz\\\\.id div.inputcontent").length);  alert($("form.form1").find(".swfield-clazz\\.id div.inputcontent").length);

i've tried \\ escape period in class not seem working

escaping \\ works.

there no such class swfield-clazz.id in html.

try rid of periods in class names, though.


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