Примеры для jQuery .children()

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Find all children of the clicked element.

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>children demo</title>
  <style>
  body {
    font-size: 16px;
    font-weight: bolder;
  }
  div {
    width: 130px;
    height: 82px;
    margin: 10px;
    float: left;
    border: 1px solid blue;
    padding: 4px;
  }
  #container {
    width: auto;
    height: 105px;
    margin: 0;
    float: none;
    border: none;
  }
  .hilite {
    border-color: red;
  }
  #results {
    display: block;
    color: red;
  }
  p, span, em, a, b, button {
    border: 1px solid transparent;
  }
  p {
    margin: 10px;
  }
  span {
    color: blue;
  }
  input {
    width: 100px;
  }
  </style>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
 
<div id="container">
  <div>
    <p>This <span>is the <em>way</em> we</span>
      write <em>the</em> demo,</p>
  </div>
 
  <div>
    <a href="#"><b>w</b>rit<b>e</b></a> the <span>demo,</span> <button>write
    the</button> demo,
  </div>
 
  <div>
    This <span>the way we <em>write</em> the <em>demo</em> so</span>
    <input type="text" value="early"> in
  </div>
 
  <p>
    <span>t</span>he <span>m</span>orning.
    <span id="results">Found <span>0</span> children in <span>TAG</span>.</span>
  </p>
</div>
 
<script>
$( "#container" ).click(function ( event ) {
  $( "*" ).removeClass( "hilite" );
  var kids = $( event.target ).children();
  var len = kids.addClass( "hilite" ).length;
 
  $( "#results span:first" ).text( len );
  $( "#results span:last" ).text( event.target.tagName );
 
  event.preventDefault();
});
</script>
 
</body>
</html>

Демонстрация:

Find all children of each div.

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>children demo</title>
  <style>
  body {
    font-size: 16px;
    font-weight: bolder;
  }
  span {
    color: blue;
  }
  p {
    margin: 5px 0;
  }
  </style>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
 
<p>Hello (this is a paragraph)</p>
 
<div><span>Hello Again (this span is a child of the a div)</span></div>
<p>And <span>Again</span> (in another paragraph)</p>
 
<div>And One Last <span>Time</span> (most text directly in a div)</div>
 
<script>
$( "div" ).children().css( "border-bottom", "3px double red" );
</script>
 
</body>
</html>

Демонстрация:

Find all children with a class "selected" of each div.

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>children demo</title>
  <style>
  body {
    font-size: 16px;
    font-weight: bolder;
  }
  p {
    margin: 5px 0;
  }
  </style>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
 
<div>
  <span>Hello</span>
  <p class="selected">Hello Again</p>
  <div class="selected">And Again</div>
  <p>And One Last Time</p>
</div>
 
<script>
$( "div" ).children( ".selected" ).css( "color", "blue" );
</script>
 
</body>
</html>

Демонстрация: