trdarr

/* "Thunks, Trampolines, and Continuation Passing"
 * Python implementation from http://jtauber.com/blog/2008/03/30/
 * JavaScript implementation by Thomas Darr <me@trdarr.com>.
 */

// thunk = lambda name: lambda *args: lambda: name(*args)
var thunk = function thunk(fn) {  
  return function _thunk() {
    var splat = Array.prototype.slice.apply(arguments);
    return function __thunk() { return fn.apply(this, splat); };

staltz

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.

---

sjoerdvisscher

// See http://blog.sigfpe.com/2008/12/mother-of-all-monads.html

// MARK: function composition
infix operator >>> { associativity left }
func >>> <A, B, C>(f: A -> B, g: B -> C) -> A -> C {
    return { x in g(f(x)) }
}

// MARK: Continuation monad
struct Cont<R, A> {

tuxfight3r

Bash Shortcuts

Moving

command	description
ctrl + a	Goto BEGINNING of command line

DrBoolean

const daggy = require('daggy')
const {compose, curry, map, prop, identity, intersection, union} = require('ramda');
const inspect = (x) => { if(!x) return x; return x.inspect ? x.inspect() : x; }

// F-algebras


// Fix
// ============
// Fx is a simple wrapper that does almost nothing. It's much more useful in typed languages to check that we have a recursive f (Fix f)

billautomata

# local port forwarding
# the target host 192.168.0.100 is running a service on port 8888
# and you want that service available on the localhost port 7777

ssh -L 7777:localhost:8888 user@192.168.0.100

# remote port forwarding
# you are running a service on localhost port 9999 
# and you want that service available on the target host 192.168.0.100 port 12340

DrBoolean

import {StateT} from 'fantasy-states'
import Task from 'data.task'
import {prop, compose, map, chain, merge, always} from 'ramda'

// Unfortunately Binary Gendered Baby Page
//==========================================

// data App a b c = App State a (Task b c)
const App = StateT(Task)
const {get, put, modify} = App;

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))

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

brennanMKE

import * as mongoose from 'mongoose';

export let Schema = mongoose.Schema;
export let ObjectId = mongoose.Schema.Types.ObjectId;
export let Mixed = mongoose.Schema.Types.Mixed;

export interface IHeroModel extends mongoose.Document {
  name: string;
  power: string;