smitter is a small 250 byte event emitter.
npm i smitter
import { smitter } from 'smitter'
// create an instance
let emitter = smitter()
// subscribe to an event called 'hi'
let off = emitter.on('hi', x => {
console.log(`hi ${x}!`)
})
// fire an event called 'hi' and pass data to the handler
emitter.emit('hi', 'mom') // 'hi mom!' logged to console
// remove subscription
off()
emitter.emit('hi', 'dad') // nothingIf you're using Typescript, you can strictly type your events and handlers.
let emitter = smitter<{
hi: { name: string }
}>()
// strictly typed payloads
emitter.on('hi', ({ name }) => {})
// [E] Argument of type 'string' is not assignable to parameter of type { name: string }
emitter.emit('hi', 'mom')
// OK
emitter.emit('hi', { name: 'mom' })