This package was inspired by backbone framework and has same api.
The only goal was make it separate and without any dependencies.
Also, there is some difference in performance in compare to backbone
environment
- core i3
- chrome 78.0.3904.97 (64)
- 1 000 000 iterations
| op/sec | |
|---|---|
| on | |
| on('event', cb) | |
| backbone | 1 600 000 |
| yaff | 1 200 000 |
| on('event1 event2 event3', cb) | |
| backbone | 700 000 |
| yaff | 600 000 |
| on({ event1: cb, event2: cb, event3: cb }, context) | |
| backbone | 800 000 |
| yaff | 800 000 |
| once | |
| once('event', cb) | |
| backbone | 1 000 000 |
| yaff | 1 200 000 |
| once('event1 event2 event3', cb) | |
| backbone | 400 000 |
| yaff | 600 000 |
| once({ event1: cb, event2: cb, event3: cb }, context) | |
| backbone | 400 000 |
| yaff | 800 000 |
| listenTo | |
| listenTo(other, 'event', cb) | |
| backbone | 200 000 |
| yaff | 700 000 |
| listenTo(other, 'event1 event2 event3', cb) | |
| backbone | 200 000 |
| yaff | 400 000 |
| listenTo(other, { event1: cb, event2: cb, event3: cb }, context) | |
| backbone | 200 000 |
| yaff | 600 000 |
| listenToOnce | |
| listenToOnce(other, 'event', cb) | |
| backbone | 200 000 |
| yaff | 600 000 |
| listenToOnce(other, 'event1 event2 event3', cb) | |
| backbone | 200 000 |
| yaff | 400 000 |
| listenToOnce(other, { event1: cb, event2: cb, event3: cb }, context) | |
| backbone | 200 000 |
| yaff | 600 000 |
| off | |
| off() when 15 events | |
| backbone | 1 400 000 |
| yaff | 1 400 000 |
| off() when 3 own events and 5 on listeners | |
| backbone | 400 000 |
| yaff | 1 000 000 |
| off("event") when there are 3 of 10 | |
| backbone | 400 000 |
| yaff | 600 000 |
| off("event") when there are 12 events and "event" is last | |
| backbone | 200 000 |
| yaff | 1 000 000 |
| stopListening | |
| stopListening() when 3 emitters with 3 events on each | |
| backbone | 200 000 |
| yaff | 200 000 |
| stopListening('event') when 3 emitters with 3 events on each | |
| backbone | 200 000 |
| yaff | 800 000 |
| trigger | |
| trigger('event') when last of 6 | |
| backbone | 1 400 000 |
| yaff | 1 200 000 |
| trigger('event') when first of 6 | |
| backbone | 1 200 000 |
| yaff | 1 200 000 |
| trigger('a b c d e') when b and d are listened once | |
| backbone | 100 000 |
| yaff | 400 000 |