constructor() {
this.events = new EventEmitter();
this.events.setMaxListeners(0);
}
import * as events from 'events';
import {readBackup} from './backup';
export const emitter = new events.EventEmitter();
emitter.setMaxListeners(0);
export interface User {
name: string;
points: number;
}
const userStore: { [name: string]: User } = {};
export function upvote(name: string) {
addUser(name);
const user = getUser(name);
user.points++;
emitter.emit('users', getUsers());
return user;
}
export function downvote(name: string) {
addUser(name);
const user = getUser(name);
user.points--;
emitter.emit('users', getUsers());
return user;
}
console.log('listener2');
};
const listener3 = (arg1: string) => {
console.log('listener3', arg1);
};
const listener4 = () => {
console.log('type of number');
};
const listener5 = () => {
console.log('prepend listener');
};
const listener6 = () => {
console.log('prepend once listener');
};
emitter.setMaxListeners(100);
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);
const listener: (...args: any[]) => void = () => {};
const any: any = 1;
{
let result: events.EventEmitter;
result = emitter.addListener(event, listener);
result = emitter.on(event, listener);
result = emitter.once(event, listener);
result = emitter.prependListener(event, listener);
result = emitter.prependOnceListener(event, listener);
result = emitter.removeListener(event, listener);
result = emitter.off(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
const promise: Promise<any> = events.once(new events.EventEmitter(), 'error');
result = emitter.getMaxListeners();
result = emitter.listenerCount(event);
}
{