ZacharyL2

const deepClone = (obj, map = new WeakMap()) => {
  if (obj instanceof Date) return new Date(obj);
  if (obj instanceof RegExp) return new RegExp(obj);

  if (map.has(obj)) {
    return map.get(obj);
  }

  const allDesc = Object.getOwnPropertyDescriptors(obj);
  const cloneObj = Object.create(Object.getPrototypeOf(obj), allDesc);

chrisurf

ASCII art characters for creating diagrams

Single line characters

ASCII code	Character	Description
191	┐	Box drawing character single line upper right corner
192	└	Box drawing character single line lower left corner
193	┴	Box drawing character single line horizontal and up
194	┬	Box drawing character single line horizontal down

bradtraversy

[
	{
		"abbr": "AL",
		"name": "Alabama",
		"capital": "Montgomery",
		"lat": "32.361538",
		"long": "-86.279118"
	},
	{
		"abbr": "AK",

fnky

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

NWCalvank

module.exports = {
  compose,
  concat,
};

function apply(x, f) {
  return f(x);
}

function compose(...funcs) {

yelouafi

In this tutorial we're going to build a set of parser combinators.

What is a parser combinator?

We'll answer the above question in 2 steps.

1. What is a parser?
2. and, what is a parser combinator?

So first question: What is parser?

wojteklu

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

---

General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

Avaq

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 S_ = f => g => x => f (g (x)) (x)
const S2 = f => g => h => x => f (g (x)) (h (x))

paulirish

/* bling.js */
window.$ = document.querySelector.bind(document);
window.$$ = document.querySelectorAll.bind(document);
Node.prototype.on = window.on = function(name, fn) { this.addEventListener(name, fn); };
NodeList.prototype.__proto__ = Array.prototype;
NodeList.prototype.on = function(name, fn) { this.forEach((elem) => elem.on(name, fn)); };