pingfengafei pingfengafei

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	import { useState } from 'react';

	export function useCounter(initial = 0) {
	const [count, setCount] = useState(initial);

	return [count, () => setCount(count + 1)];
	}

	var noop = () => {}
	var compose = (f1, f2) => (...args) => f1(f2(...args))
	var range = (start, end) => {
	let n = start
	let f = (next, complete) => {
	if (n <= end) {
	next(n++)
	f(next, complete)
	} else {
	complete()

	///
	/// Factorial function in lambda calculus - implemented in JS
	///

	//// Lambda calculus
	// zero = λs.λz.z
	// succ = λn.λs.λz.s (n s z)
	// mult = λn.λm.λs.m (n s)
	// pred = λn.λf.λx.n(λg.λh.h (g f))(λu.x)(λu.u)
	// minus = λn.λm.m pred n

	function navigate(nmbrInt, roads, from, to) {
	const getRoad = (from, to, roads) => roads.filter((e) => e.from == from && e.to == to)[0];
	const getIntersections = (roads) => roads.reduce((r, e) => r.concat([e.from, e.to]), []).filter((e, i, a) => a.indexOf(e) === i);
	const permutator = function(inputArr, from, to) {
	var r = [];
	var permute = function(arr, memo) {
	var cur, memo = memo \|\| [];

	for (var i = 0; i < arr.length; i++) {
	cur = arr.splice(i, 1);