let result: events.EventEmitter;
result = emitter.addListener(event, listener);
result = emitter.on(event, listener);
result = emitter.once(event, listener);
result = emitter.removeListener(event, listener);
result = emitter.removeAllListeners();
result = emitter.removeAllListeners(event);
result = emitter.setMaxListeners(42);
}
{
let result: number;
result = events.EventEmitter.defaultMaxListeners;
result = events.EventEmitter.listenerCount(emitter, event); // deprecated
result = emitter.getMaxListeners();
result = emitter.listenerCount(event);
}
{
let result: Function[];
result = emitter.listeners(event);
}
{
let result: boolean;
result = emitter.emit(event);
emitter.addListener('send', listener1);
emitter.on('send', listener2);
emitter.on('send', listener3);
emitter.once('send', listener);
emitter.once(1, listener4);
emitter.prependListener('send', listener5);
emitter.prependOnceListener('send', listener6);
emitter.listeners('send');
emitter.listenerCount('send');
emitter.rawListeners('send');
EventEmitter.defaultMaxListeners = 100;
console.log(`count(static): ${EventEmitter.listenerCount(emitter, 'send')}`);
console.log(`ncount: ${emitter.listenerCount('send')}`);
console.log(`maxListeners: ${emitter.getMaxListeners()}`);
console.log(`eventNames: ${emitter.eventNames().join(', ')}`);
console.log(`rawListeners count: ${emitter.rawListeners('send').length}`);
setTimeout(() => {
console.log('\n');
emitter.emit('send');
}, 1000);
setTimeout(() => {
listenerCount(type: string | symbol): number {
return this.events.listenerCount(type);
}
.reduce((reduced, name) => emitter.listenerCount(name) + reduced, 0);