Using Flux.js

The Flux.js is a library created by the creators of Flux. It is used to build dispatchers. You can find the Flux.js source code at https://github.com/facebook/flux and the CDN version at https://cdnjs.com/libraries/flux.

A dispatcher is created using the Dispatcher constructor. It has five methods, as follows:

• register(callback): This method lets us register a callback. It returns a string called the callback ID to uniquely identify a callback.
• unregister(id): This is a method lets us unregister a registered callback. To unregister, we need to pass the ID of the callback that we want to unregister.
• waitFor(array): This waits for the specified callbacks to be invoked before continuing with the execution of the current callback. This method should only be used by a callback in response to a dispatched action.
• dispatch(action): This dispatches an action to registered callbacks.
• isDispatching(): This returns a Boolean indication of whether the dispatcher is currently dispatching.

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