使li选择复选框

Question

I've got a script which checks a checkbox when the span of an li is clicked. My problem is that the width of the li is longer than the span and therefore, part of the li doesn't check the checkbox.

 $('ul.myclass li span').click( function() { var $cb = $(this).parent().find(":checkbox"); if (!$cb.prop("checked")) { $cb.prop("checked", true); } else { $cb.prop("checked", false); } }); 

 .myclass li span { margin-left: 5px; } li { background: red; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <ul class="myclass"> <li><input type="checkbox"><span>some text</span></li> <li><input type="checkbox"><span>some text</span></li> <li><input type="checkbox"><span>some text</span></li> </ul> 

JsFiddle: http://jsfiddle.net/7w82S/89/

Answer 1

Use the appropriate HTML <label> element to associate the text with the <input> :

<ul class="myclass">
    <li><label><input type="checkbox"><span>some text</span></label></li>
    <li><label><input type="checkbox"><span>some text</span></label></li>
    <li><label><input type="checkbox"><span>some text</span></label></li>
</ul>

With display: block; (for the <label> element's style) to fill its ancestor <li> and the desired behaviour is automatic, requiring no JavaScript.

Answer 2

if i got the question right you can do this

$('ul.myclass li').click( function() {
   var $cb = $(this).find(":checkbox");
    if (!$cb.prop("checked")) {
        $cb.prop("checked", true);
    } else {
        $cb.prop("checked", false);
    }
 });