threepointone

On implementing a client for feature flags in your UI codebase

This document isn't an explainer on Feature Flags, you can find that with my amateur writeup, or literally hundreds of better writeups out there.

This document is also agnostic to the choice of service you'd use: LaunchDarkly or split.io or optimizely or whatever; that's orthogonal to this conversation.

Instead, this document is a list of considerations for implementing a client for using Feature Flags for User Interface development. Service providers usually give a simple fetch and use client and that's it; I contend that there's a lot more to care about. Let's dive in.

To encourage usage, we'd like for the developer experience to be as brutally simple as possible. So, this should be valid usage:

ryanflorence

let UserContext = React.createContext();

class App extends React.Component {
  state = {
    user: null,
    setUser: user => {
      this.setState({ user });
    }
  };

zpao

React-Core Meeting Notes 2015-03-20

Note: This is the first time we're sharing meeting notes publicly. The primary reason we haven't shared these is because we often mix public discussions with matters that are Facebook specific and should not be public. We're really trying to be more open about our development process and what's happening inside the project so moving forward, we'll be sharing meeting notes. While most of us do work at Facebook, we're committed to this being an open project - for now we'll filter out the private notes from the public notes. Hopefully we can make it possible for these meetings to be open to any who wish to attend.

Attendees:

• @zpao
• @sebmarkbage
• @spicyj
• @jeffmo

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.

---

JeffreyWay

<?php

class BaseModel extends Eloquent {
  public static function shouldReceive()
  {
    $repo = get_called_class() . 'RepositoryInterface';
    $mock = Mockery::mock($repo);

    App::instance($repo, $mock);

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'