Angular 2 Event emitters vs Subject

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Happy的楠姐
Happy的楠姐 2020-12-04 20:46

In Angular 2 what is the difference between Event Emitter and Subject for announcing an event? It seems like event emitters are less complicated to declare....Which way is p

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  •  遥遥无期
    2020-12-04 21:46

    There is not much difference. EventEmitter extends Subject.

    The Angular2 team stressed the fact though, that EventEmitter should not be used for anything else then @Output()s in components and directives.

    The Angular team has stated that they may change the underlying implementation of EventEmitter and break user code that uses EventEmitter for something it wasn't intended for. That's the main difference.

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