callbacks.locked ( ) Returns: Booleanversion added: 1.7

Description: Determine if the callbacks list has been locked.

Examples:

Example: Use callbacks.locked() to determine the lock-state of a callback list:

// A sample logging function to be added to a callbacks list
var foo = function( value ) {
  console.log( "foo: " + value );
};

var callbacks = $.Callbacks();

// Add the logging function to the callback list
callbacks.add( foo );

// Fire the items on the list, passing an argument
callbacks.fire( "hello" );
// Outputs "foo: hello"

// Lock the callbacks list
callbacks.lock();

// Test the lock-state of the list
console.log ( callbacks.locked() );
// true