Get first child ID : Selector first last « jQuery « JavaScript Tutorial






  1. JavaScript Tutorial
  2. jQuery
  3. Selector first last
<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
           $("#container").click(function (e) {
              var $ch = $(e.target).children();
              
              $("#results span:first").text($ch.length);
              
              e.preventDefault();
              return false;
            });

        });
    </script>
  </head>
  <body>
    <body>
    <div id="container">
        <div>
          <p>This <span>is the <em>way</em> we</span> 
          write <em>the</em> demo,</p>
        </div>
        
    </div>
    <span id="results">Found <span>0</span> children in <span>TAG</span>.</span>
  </body>
</html>








30.6.Selector first last
30.6.1.Get first paragraph
30.6.2.Select first span
30.6.3.Get first child ID
30.6.4.lastChild() : One for each parent.
30.6.5.firstChild(): One for each parent.
30.6.6.Get last paragraph
30.6.7.Matches the first selected element
30.6.8.last() matches the last selected element.
30.6.9.first() matches only a single element
30.6.10.Matches the last selected element