ryanflorence

// I've only used this for focus management, I'm willing to bet you don't
// actually want to do this unless it's focus management
function useUpdateEffect(effect, deps) {
  let mounted = useRef(false)

  useEffect(() => {
    if (mounted.current) {
      return effect()
    } else {
      mounted.current = true

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?

pushmatrix

man
kvinna
är
pojke
flicka
jag
en
han
hon
ett

bobbygrace

Hello, visitors! If you want an updated version of this styleguide in repo form with tons of real-life examples… check out Trellisheets! https://github.com/trello/trellisheets

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Trello CSS Guide

“I perfectly understand our CSS. I never have any issues with cascading rules. I never have to use !important or inline styles. Even though somebody else wrote this bit of CSS, I know exactly how it works and how to extend it. Fixes are easy! I have a hard time breaking our CSS. I know exactly where to put new CSS. We use all of our CSS and it’s pretty small overall. When I delete a template, I know the exact corresponding CSS file and I can delete it all at once. Nothing gets left behind.”

You often hear updog saying stuff like this. Who’s updog? Not much, who is up with you?

gist:23a4aa44b4ddf28c6575

// by Dave @ beesandbombs >:)

int[][] result;
float time;

void setup() {
  setup_();
  result = new int[width*height][3];
}

AdmiralPotato

//configurable variables
boolean
	exportMode = true; //set to true when exporting, false when designing
String
	folderPrefix = "b";
int
	fps = 24,
	outputScale = 2, //set to 2 or 4 when exporting, 1 when designing
	windowSize = 480 * outputScale,

dypsilon

Backend Development

• node.js
  • Installation paths: use one of these techniques to install node and npm without having to sudo.
  • Node.js HOWTO: Install Node+NPM as user (not root) under Unix OSes
  • Felix's Node.js Guide
  • Creating a REST API using Node.js, Express, and MongoDB
  • Node Cellar Sample Application with Backbone.js, Twitter Bootstrap, Node.js, Express, and MongoDB
  • JavaScript Event Loop
• Node.js for PHP programmers