William Dias wdiasvargas

## setting-up-babel-nodemon.js
npm i --save-dev babel-cli babel-preset-env nodemon && echo { "presets": ["env"] } > .babelrc

## 1.1.js
var str = "isso é uma string";
typeof(str);//'string'

var num = 1.74;
typeof(num);//'number'

var bol = true;
typeof(bol);//'boolean'

var und; //undefined

## 1.1_literal.js
var str = "isso é uma string";
typeof(str);//'string'

var num = 1.74;
typeof(num);//'number'

var bol = true;
typeof(bol);//'boolean'


## index-test
<!doctype html>
<title>Site Maintenance</title>
<style>
    body { text-align: center; padding: 150px; }
    h1 { font-size: 50px; }
    body { font: 20px Helvetica, sans-serif; color: #333; }
    article { display: block; text-align: left; width: 650px; margin: 0 auto; }
    a { color: #dc8100; text-decoration: none; }
    a:hover { color: #333; text-decoration: none; }
</style>

## higher-order-functions.js
const soma = (x, y) => x + y;
const calcular = (fn, x, y) => fn(x, y);
calcular(sum, 1, 2);

## babel-setup-es2017
npm install --save-dev babel-cli babel-preset-es2017 && echo '{ "presets": ["es2017"] }' > .babelrc && echo 'function a(b,) { console.log("hi"); }; a()' > index.js
//run     ./node_modules/.bin/babel-node index.js
//params  $babel$ $script.js$ --presets es2017

## y-combinator-factorial.es6
/**
 * Created in 21/06/2017.
 * Author: William Dias Vargas
 * Github: @wdiasvargas
 */
'use strict';
import yCombFact from './y-combinator-factorial'
export default (number) => ((fn) => fn(fn, number))((f, n) => (n <= 1)? 1: n * f(f, (n - 1)))

console.info(yCombFact(5))

## y-combinator.es6
/**
 * Created in 21/06/2017.
 * Author: William Dias Vargas
 * Github: @wdiasvargas
 */
'use strict';
//http://kestas.kuliukas.com/YCombinatorExplained/
() => (f) => f(f)((f) =>((x) => (f(f))(x))))


## memoization.es6
/**
 * Created in 20/06/2017.
 * Author: William Dias Vargas
 * Github: @wdiasvargas
 */
"use strict";
export default (fn, cache = {}) => (x) => (x in cache) ? cache[x] : cache[x] = fn(x);

## memoization.es6
/**
 * Created in 20/06/2017.
 * Author: William Dias Vargas
 * Github: @wdiasvargas
 */
"use strict";
export default (fn, cache = {}) => (x) => (x in cache) ? cache[x] : cache[x] = fn(x);
	var str = "isso é uma string";
	typeof(str);//'string'

	var num = 1.74;
	typeof(num);//'number'

	var bol = true;
	typeof(bol);//'boolean'

	var und; //undefined
	<!doctype html>
	<title>Site Maintenance</title>
	<style>
	body { text-align: center; padding: 150px; }
	h1 { font-size: 50px; }
	body { font: 20px Helvetica, sans-serif; color: #333; }
	article { display: block; text-align: left; width: 650px; margin: 0 auto; }
	a { color: #dc8100; text-decoration: none; }
	a:hover { color: #333; text-decoration: none; }
	</style>
	const soma = (x, y) => x + y;
	const calcular = (fn, x, y) => fn(x, y);
	calcular(sum, 1, 2);
	npm install --save-dev babel-cli babel-preset-es2017 && echo '{ "presets": ["es2017"] }' > .babelrc && echo 'function a(b,) { console.log("hi"); }; a()' > index.js
	//run ./node_modules/.bin/babel-node index.js
	//params $babel$ $script.js$ --presets es2017
	/**
	* Created in 21/06/2017.
	* Author: William Dias Vargas
	* Github: @wdiasvargas
	*/
	'use strict';
	import yCombFact from './y-combinator-factorial'
	export default (number) => ((fn) => fn(fn, number))((f, n) => (n <= 1)? 1: n * f(f, (n - 1)))

	console.info(yCombFact(5))
	/**
	* Created in 20/06/2017.
	* Author: William Dias Vargas
	* Github: @wdiasvargas
	*/
	"use strict";
	export default (fn, cache = {}) => (x) => (x in cache) ? cache[x] : cache[x] = fn(x);