event_emitter.js
JavaScript•エキスパート
Explorer
C40
C++40
C#40
Dart40
Go40
Java40
JavaScript
初級10
中級10
上級10
エキスパート5
async_iterator.js
proxy_handler.js
promise_all.js
memoize.js
event_emitter.js
マスター5
Kotlin40
Objective-C40
Perl40
PHP40
Python40
R40
Ruby40
Rust40
Shell40
Swift40
TypeScript40
event_emitter.js
Click to focus
1
2
3
4
5
6
7
8
9
class EventEmitter {↵
events = {};↵
on(event, fn) {↵
(this.events[event] ??= []).push(fn);↵
}↵
emit(event, ...args) {↵
this.events[event]?.forEach(fn => fn(...args));↵
}↵
}
0WPM•0%•0:00•0/193(0%)|Ln 1, Col 1
UTF-8•JavaScript