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Diferencia en la declaración de funciones dentro de objetos JavaScript

¿Cuál es la diferencia al declarar funciones como esta en JavaScript?

 const sub = { _unsubscribed: false, unsubscribe() { this._unsubscribed = true }, next(value) { if (this._unsubscribed) return; if (subscriber instanceof Function) return subscriber(value); return subscriber.next ? subscriber.next(value) : null; }, error(error) { if (this._unsubscribed) return; this._unsubscribed = true; return subscriber.error ? subscriber.error(error) : null; }, complete() { if (this._unsubscribed) return; this._unsubscribed = true; return subscriber.complete ? subscriber.complete() : null; } }

contra esto:

 const sub = { _unsubscribed: false, unsubscribe: () => this._unsubscribed = true, next: (value) => { if (this._unsubscribed) return; if (subscriber instanceof Function) return subscriber(value); return subscriber.next ? subscriber.next(value) : null; }, error: (error) => { if (this._unsubscribed) return; this._unsubscribed = true; return subscriber.error ? subscriber.error(error) : null; }, complete: () => { if (this._unsubscribed) return; this._unsubscribed = true; return subscriber.complete ? subscriber.complete() : null; } }

Cuando se usa la sub instancia de objeto para llamar a las funciones dentro de sí misma repetidamente, ¿cuáles son las propiedades de usar el primer método en comparación con el segundo método?

about 4 years ago · Juan Pablo Isaza
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