lupuszr

Books

** [] https://www.cs.cmu.edu/~rwh/theses/okasaki.pdf

Tutorials

** OOP Design patter alternatives

Videos

** Purely functional data structures - video

lupuszr

type lazy_node_t('a) =
  | Delayed(unit => 'a)
  | Value('a)
  | Exn(exn);
type lazy_t('a) = ref(lazy_node_t('a));
let lazy_from_fun = f => ref(Delayed(f));

let force = x_lazy =>
  switch (x_lazy^) {
  | Value(x) => x

lupuszr

function Complex(re, im) {
  this.re = re;
  this.im = im;
  return this;
}

Complex.of = function (r, i) {
  return new Complex(r,i);
}

lupuszr

const trampoline = fn => (...args) => {
  let result = fn(...args)
  
  while (typeof result === 'function') {
    result = result()
  }
  
  return result
}

lupuszr

interface IO<T> {
   (unsafeIO: Function): IO<T>; 
   chain(fn: (a: T) => IO<T>): IO<T>
   of(performUnsafeIO: (a: T) => T): IO<T>;
   fork(): IO<T>;
   map(fn: (a: T) => T): IO<T>;
   value: Function
};
type KIO<T> = (a: T) => T;

lupuszr

const I = x => x;
const K = x => y => x;
const A = f => x => f(x);
const T = x => f => f(x);
const W = f => x => f(x)(x);
const C = f => y => x => f(x)(y);
const B = f => g => x => f(g(x));
const S = f => g => x => f(x)(g(x));
const P = f => g => x => y => f(g(x))(g(y));
const Y = f => (g => g(g))(g => f(x => g(g)(x)));

lupuszr

1. create-react-native-app purescript-app; cd purescript-app

2. pulp init --force

3. pulp build

4. src/Main.js

var React = require("react");
var RN = require("react-native");

exports.text = function(props){

lupuszr

import React, { Component } from 'react';
 
// schema = {name: 'Name', position: 'Position', office: 'Office', age: 'Age', startDate: 'Start date', salary: 'Salary'}
// data = [{ name: 'Tiger Nixon', position: 'System Architect', office: 'Edinburgh', age: 61, startDate: '2011/04/25', salary: '$320,800'}, ...]

export const DataTableHeader = ({ name }) => (
  <div className="card-header">
    <i className="fa fa-table"></i>{name}
  </div>
);

lupuszr

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.

---

lupuszr

//implementation

//compose, curry, partial
var compose = curry(function(f, g, x) {
  return f(g(x))
})