callbacks.add( callbacks )Returns: Callbacks
Description: Add a callback or a collection of callbacks to a callback list.
-
version added: 1.7callbacks.add( callbacks )
- callbacksA function, or array of functions, that are to be added to the callback list.
-
This method returns the Callbacks object onto which it is attached (this
).
Example:
Use callbacks.add()
to add new callbacks to a callback list:
// 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"