Funny

funny.js

console.clear()

let state = {
	todos: []
}

let box = data => ({
	map: fun => box(fun(data)),
	fold: fun => fun(data),
	val: data
})

let getposts = (time) => new Promise((resolve, reject) => {
	setTimeout(() => {
		resolve(box(['abc']))
	}, time || 3000)
})

let addTodos = (state, data) => {
	let clone = Object.assign({}, state);
	clone.todos = clone.todos.concat(data.val);
	return ['todoAdded', clone];
}

let todoView = (state) => {
	return state.todos
		.map(todo => '<li>' + todo + '</li>').join('')
}

let apply = ([event, newstate]) => {
	let actions = {
		todoAdded: () => {
			let view = todoView(newstate)
			document.querySelector('.todos').innerHTML = view
		}
	}
	state = newstate;
	actions[event]()
}

getposts()
	.then(data => apply(addTodos(state, data)))

getposts(5000)
	.then(data => apply(addTodos(state, data)))
  
  

It’s meant more as a joke or light-hearted coding fun than serious utility. It’s a good example of how developers sometimes write quirky scripts just to make others smile or poke fun at common patterns in code.