event-listener-service
Universal Event Litener with testability built in
Install
Install with npm:
$ npm install event-listener-service
Api
public static useWithoutImplementation(): void
Declare usage without internal event registering implementation
public static setImplementation(implementation: EventListenerImplementation): void
Set internal event registering implementation
public static addListener(eventName: string, listener: (event?: any) => void, ...additional: any[]): void
Add EventListener
public static emit(eventName: string, emitted?: any): void
Emit event using built in event emiting
public static removeListener(eventName: string, listener: (event?: any) => void, ...additional: any[]): void
Remove EventListener
Usage
As stand alone EventListener
; // Declare usage without internal event registering implementationEventListenerService; { console;} // Adding EventLisnerEventListenerService; // Emiting Events EventListenerService; // Removing EventLisnterEventListenerService;
For listening events on DOM Nodes in the Browser
; // Seting internal event registering implementationEventListenerService; { /* ... */} // Adding EventLisnerEventListenerService; // Removing EventLisnterEventListenerService; // Optionaly you can manually trigger event listeners in your tests or when you need to fully simulate event EventListenerService;
As universal EventListener API
// Set internal implementation for registering event listeners EventListenerService; // And than use addListener and removeListner EventListnerService; EventListnerService;
Testing
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npm install
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npm test
Contributing
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npm install
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Make changes
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If necessary add some tests to
__tests__
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npm test
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Make a Pull Request