Age Of Learning JavaScript SDK Class: RegisterCallback

Class: RegisterCallback

@aofl/register-callback~ RegisterCallback

RegisterCallback class. It allows callback functions to be registered and called in series when registerCallbackinstance.next is called.

Creates an instance of RegisterCallback.

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next( [err], args)

When next() is invoked, it calls all functions in this.callbacks list and passes error and args to each function.

Name	Type	Argument	Default	Description
`err`	Error	<optional>	null
`args`	*	<repeatable>

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register(cb)

When register() is invoked, it adds next and error functions to the callbacks list.

Name	Type	Description
`cb`	function	The callback function is invoked when registerCallbackInstance.next is called.

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