const { createStore, createEvent } = require("effector")
const incr = createEvent('foo')
const decr = createEvent('bar')
const another = createEvent('another')
const store = createStore(0)
.on(incr, (state, value) => state + value)
.on(decr, (state, value) => state - value)
.watch((value) => console.log(`triggered ${value}`))
another(100)
incr(1)
incr(2)
decr(3)
another(200)
Created from: https://npm.runkit.com/effector