title: How to remove checked attribute from an input with jQuery
body: <p>I'm trying to remove checked attribute from an input who is checked as default. I'm working with Isotope filters.</p>
  
  <p>I tried </p>
  
  <pre><code>this.prop('checked', false); 
  </code></pre>
  
  <p>and </p>
  
  <pre><code>this.attr('checked', 'checked');
  </code></pre>
  
  <p>nothing works...</p>
  
  <p>the input</p>
  
  <pre><code>&lt;input type="checkbox" name="files[]" value="" class="item 35 40" style="visibility:hidden;" checked&gt;
  </code></pre>
  
  <p>the javascript</p>
  
  <pre><code>proto.onHideTransitionEnd = function() {
  
    if ( this.isHidden ) {
      this.css({ display: 'none' });
      this.emitEvent('hide');
    }
  };
  </code></pre>