ryyppy

// ###############################
// runPackager.js
// ###############################

// In this example, the IO function is tightly coupled with the implementation
import { execFileSync } from 'child_process';

type RunPackagerOptions = {
  projectRoot: string, // CWD the react-native binary is being run from
  targetDir: string, // Target directory absolute or relative to projectRoot (e.g. 'rna/')

tamoyal

# Be sure to save your config files. Optional but I do:
sudo cp /etc/postgresql/9.3/main/postgresql.conf ~
sudo cp /etc/postgresql/9.3/main/pg_hba.conf ~

# Package repo (for apt-get)
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main" >> /etc/apt/sources.list.d/postgresql.list'

# Also probably optional but I like to update sources and upgrade
sudo apt-get update

twokul

Hidden classes in JavaScript and Inline Caching

Knowing how internals work is always a good. Pretty much for everything. Cars, trains, computers, you name it. It gives you an insight on what happens under the hood. You also act/react differently based on this knowledge.

As you might have guessed, it’s also true for web development. Knowledge of CSS transitions allows you to achieve better performance and not to use JavaScript in most cases. Knowledge of V8 internals allows you to write more performant JavaScript code. So let’s talk about V8 a little.

A little about V8

V8 is a JavaScript engine built by Google. Firefox built SpiderMonkey, Opera built Carakan and Microsoft built Chakra. One very important difference between V8 and other JavaScript engines is that V8 doesn’t generate any intermediate code. It compiles JavaScr