callbacks.fired.xml

<entry name="callbacks.fired" type="method" return="Boolean">
  <signature>
    <added>1.7</added>
  </signature>
  <desc>Determine if the callbacks have already been called at least once.</desc>
  <longdesc>
<h2 id="example-1">Example</h2>
<p>Using <code>callbacks.fired()</code> to determine if the callbacks in a list have been called at least once:</p>
<pre>
// a sample logging function to be added to a callbacks list
var foo = function( value ){
    console.log( 'foo:' + 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'
callbacks.fire( 'world '); // outputs: 'foo: world'

// test to establish if the callbacks have been called
console.log( callbacks.fired() );
</pre>
  </longdesc>
<category slug="callbacks-object"/>
<category slug="version/1.7"/>
</entry>