callbacks.add.xml

<entry name="callbacks.add" type="method" return="undefined">
  <signature>
    <added>1.7</added>
    <argument name="callbacks" type="Function">
      <desc>A function, or array of functions, that are to be added to the callback list.</desc>
    </argument>
  </signature>
  <desc>Add a callback or a collection of callbacks to a callback list.</desc>
  <longdesc>
<h2 id="example-1">Example</h2>
<p>Using <code>callbacks.add()</code> to add new callbacks to a callback list:</p>
<pre>
// a sample logging function to be added to a callbacks list
var foo = function( value ){
    console.log( 'foo:' + value );
}

// another function to also be added to the list
var bar = function( value ){
    console.log( 'bar:' + value );
}

var callbacks = $.Callbacks();

// add the function 'foo' to the list
callbacks.add( foo );

// fire the items on the list
callbacks.fire( 'hello' );  
// outputs: 'foo: hello'

// add the function 'bar' to the list
callbacks.add( bar );

// fire the items on the list again
callbacks.fire( 'world' );  

// outputs:
// 'foo: world'
// 'bar: world'
</pre>

  </longdesc>
</entry>