jsdf

// for an updated version see https://github.com/jsdf/react-native-refreshable-listview

var React = require('react-native')
var {
  ListView,
  ActivityIndicatorIOS,
  StyleSheet,
  View,
  Text,
} = React

pgherveou

/// custom unique identifier
/// @see https://www.firebase.com/blog/2015-02-11-firebase-unique-identifiers.html
private let ASC_CHARS = Array("-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz")
private let DESC_CHARS = ASC_CHARS.reverse()
private var lastPushTime: UInt64 = 0
private var lastRandChars = Array<Int>(count: 12, repeatedValue: 0)

func generatePushID(ascending: Bool = true) -> String {
  let PUSH_CHARS = ascending ? ASC_CHARS: DESC_CHARS
  var timeStampChars = Array<Character>(count: 8, repeatedValue: PUSH_CHARS.first!)

ecerney

/* 
* For a more in depth look at the guard statement check out
* http://ericcerney.com/swift-guard-statement/
* where I build off the sample shown here.
*/

var x: Int? = 0

// Lets me unwrap x and also check a condition on it
func fooGuard() {

nicklockwood

Thoughts on Swift 2 Errors

When Swift was first announced, I was gratified to see that one of the (few) philosophies that it shared with Objective-C was that exceptions should not be used for control flow, only for highlighting fatal programming errors at development time.

So it came as a surprise to me when Swift 2 brought (What appeared to be) traditional exception handling to the language.

Similarly surprised were the functional Swift programmers, who had put their faith in the Haskell-style approach to error handling, where every function returns an enum (or monad, if you like) containing either a valid result or an error. This seemed like a natural fit for Swift, so why did Apple instead opt for a solution originally designed for clumsy imperative languages?

I'm going to cover three things in this post:

erica

/*

Erica Sadun, http://ericasadun.com
GameplayKit Available 10.11, iOS 9

*/

import Foundation
import GameplayKit // only available on OS X 10.11, iOS 9

blockerList.json

[
    {
        "action": {
            "type": "block"
        },
        "trigger": {
            "url-filter": ".*",
            "resource-type": ["script"],
            "load-type": ["third-party"],
            "if-domain": ["imore.com"]

haasn

Firefox bullshit removal

Updated: Just use qutebrowser (and disable javascript). The web is done for.

kylemcdonald

Theory of Building Caffe on OS X

Introduction

Our goal is to run python -c "import caffe" without crashing. For anyone who doesn't spend most of their time with build systems, getting to this point can be extremely difficult on OS X. Instead of providing a list of steps to follow, I'll try to explain why each step happens.

This page has OS X specific install instructions.

I assume:

threepointone

better caches with rethinkdb

TL;DR - smelly software engineer discusses using rethinkdb changefeeds for building caches, breaks hearts, shaves the cheerleader, shaves the world.

Let's talk about caches.

Imagine that you build UIs for an ecommerce company, possibly in a fancy office with free coffee and whatnot. You've just been asked to build a way for the marketing / sales folks to change landing pages whenever they're running campaigns. After a number of angry discussions involving the ux team about what they can and cannot change, you settle on a 'document' format for these pages. It could be json describing a tree of widgets of banners and carousels, or html, or yaml, or whatever. Maybe you also invent a dsl that marks out parts of the document as dynamic, based on request parameters or something. I dunno, I'm not your boss. You build a little ui over the weekend (with react? maybe!) that lets these folks login, drag and drop their banners, maybe upload an image or two, and save to database.

Yo

bithavoc

CREATE OR REPLACE FUNCTION notify_trigger() RETURNS trigger AS $$
	DECLARE
		channel_name varchar DEFAULT (TG_TABLE_NAME || '_changes');
	BEGIN
		IF TG_OP = 'INSERT' THEN
			PERFORM pg_notify(channel_name, '{"id": "' || NEW.id || '"}');
			RETURN NEW;
		END IF;
		IF TG_OP = 'DELETE' THEN
			PERFORM pg_notify(channel_name, '{"id": "' || OLD.id || '"}');