Примеры для jQuery .off()

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Add and remove event handlers on the colored button.

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>off demo</title>
  <style>
  button {
    margin: 5px;
  }
  button#theone {
    color: red;
    background: yellow;
  }
  </style>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
 
<button id="theone">Does nothing...</button>
<button id="bind">Add Click</button>
<button id="unbind">Remove Click</button>
<div style="display:none;">Click!</div>
 
<script>
function flash() {
  $( "div" ).show().fadeOut( "slow" );
}
$( "#bind" ).click(function() {
  $( "body" )
    .on( "click", "#theone", flash )
    .find( "#theone" )
      .text( "Can Click!" );
});
$( "#unbind" ).click(function() {
  $( "body" )
    .off( "click", "#theone", flash )
    .find( "#theone" )
      .text( "Does nothing..." );
});
</script>
 
</body>
</html>

Демонстрация:

Remove all event handlers from all paragraphs:

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$( "p" ).off();

Remove all delegated click handlers from all paragraphs:

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$( "p" ).off( "click", "**" );

Remove just one previously bound handler by passing it as the third argument:

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var foo = function() {
  // Code to handle some kind of event
};
 
// ... Now foo will be called when paragraphs are clicked ...
$( "body" ).on( "click", "p", foo );
 
// ... Foo will no longer be called.
$( "body" ).off( "click", "p", foo );

Unbind all delegated event handlers by their namespace:

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var validate = function() {
  // Code to validate form entries
};
 
// Delegate events under the ".validator" namespace
$( "form" ).on( "click.validator", "button", validate );
 
$( "form" ).on( "keypress.validator", "input[type='text']", validate );
 
// Remove event handlers in the ".validator" namespace
$( "form" ).off( ".validator" );