callbacks.fired.xml

<?xml version="1.0"?>
<entry name="callbacks.fired" type="method" return="Boolean">
  <title>callbacks.fired()</title>
  <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>Use <code>callbacks.fired()</code> to determine if the callbacks in a list have been called at least once:</p>
    <pre><code><![CDATA[// 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() );
]]></code></pre>
  </longdesc>
  <category slug="callbacks-object"/>
  <category slug="version/1.7"/>
</entry>