stettix

Things I believe

This is a collection of the things I believe about software development. I have worked for years building backend and data processing systems, so read the below within that context.

Agree? Disagree? Feel free to let me know at @JanStette. See also my blog at www.janvsmachine.net.

Fundamentals

Keep it simple, stupid. You ain't gonna need it.

aparrish

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))

chirag04

Credits

All credit to @sahrens for sharing fb's internal implementation.

Setup

• clone rocksdb from https://github.com/facebook/rocksdb.

• edit MakeFile inside rocksdb. Search for Platform-specific compilation around line 1122. Make th next few lines to look like this:

ifeq ($(PLATFORM), IOS)
# For iOS, create universal object files to be used on both the simulator and

btholt

const React = require('react');
const _ = require('lodash');

var model = new falcor.Model({
  cache: {
    movies: [
      {
        title: "Daredevil",
        plot: "Marvel lol",
        year: "2015-",

neel-krishnaswami

module type CELL = sig
  type 'a cell
  type 'a exp

  val return : 'a -> 'a exp
  val (>>=) : 'a exp -> ('a -> 'b exp) -> 'b exp

  val cell : 'a exp -> 'a cell exp 
  val get :  'a cell -> 'a exp

gaearon

// ------------
// counterStore.js
// ------------

import {
  INCREMENT_COUNTER,
  DECREMENT_COUNTER
} from '../constants/ActionTypes';

const initialState = { counter: 0 };

chantastic

Hi Nicholas,

I saw you tweet about JSX yesterday. It seemed like the discussion devolved pretty quickly but I wanted to share our experience over the last year. I understand your concerns. I've made similar remarks about JSX. When we started using it Planning Center, I led the charge to write React without it. I don't imagine I'd have much to say that you haven't considered but, if it's helpful, here's a pattern that changed my opinion:

The idea that "React is the V in MVC" is disingenuous. It's a good pitch but, for many of us, it feels like in invitation to repeat our history of coupled views. In practice, React is the V and the C. Dan Abramov describes the division as Smart and Dumb Components. At our office, we call them stateless and container components (view-controllers if we're Flux). The idea is pretty simple: components can't

csanz

function encrypt(text){
  var cipher = crypto.createCipher('aes-256-cbc','d6F3Efeq')
  var crypted = cipher.update(text,'utf8','hex')
  crypted += cipher.final('hex');
  return crypted;
}

function decrypt(text){
  var decipher = crypto.createDecipher('aes-256-cbc','d6F3Efeq')
  var dec = decipher.update(text,'hex','utf8')