title: When to use jQuery wrapper methods instead of built-in javascript methods
body: <p>Which jQuery methods should be avoided in favour of built-in methods / properties?</p>
  
  <p>Example:</p>
  
  <pre><code>$('#el').each(function(){
  
    // this.id vs $(this).attr('id');
    // this.checked vs $(this).is(':checked');
  
  });;
  </code></pre>