Примеры для jQuery.removeData()

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Set a data store for 2 names then remove one of them.

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery.removeData demo</title>
  <style>
  div {
    margin: 2px;
    color: blue;
  }
  span {
    color: red;
  }
  </style>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
 
<div>value1 before creation: <span></span></div>
<div>value1 after creation: <span></span></div>
<div>value1 after removal: <span></span></div>
<div>value2 after removal: <span></span></div>
 
<script>
var div = $( "div" )[ 0 ];
$( "span:eq(0)" ).text( "" + $( "div" ).data( "test1" ) );
jQuery.data( div, "test1", "VALUE-1" );
jQuery.data( div, "test2", "VALUE-2" );
$( "span:eq(1)" ).text( "" + jQuery.data( div, "test1" ) );
jQuery.removeData( div, "test1" );
$( "span:eq(2)" ).text( "" + jQuery.data( div, "test1" ) );
$( "span:eq(3)" ).text( "" + jQuery.data( div, "test2" ) );
</script>
 
</body>
</html>

Демонстрация: