dmurawsky

const FullHeightPage = () => (
  <div>
    Hello World!
    <style global jsx>{`
      html,
      body,
      body > div:first-child,
      div#__next,
      div#__next > div {
        height: 100%;

yang-wei

Should be work with 0.18

Destructuring(or pattern matching) is a way used to extract data from a data structure(tuple, list, record) that mirros the construction. Compare to other languages, Elm support much less destructuring but let's see what it got !

Tuple

myTuple = ("A", "B", "C")
myNestedTuple = ("A", "B", "C", ("X", "Y", "Z"))

ihcsim

vim Cheat Sheet

A list of vim commands I found helpful.

Table of Contents

• Buffers
• Tabs
• Command-line Windows

alskipp

-- a function that accepts 2 monad args ‘containing’ number types and multiplies the ‘contents’
mult a b = 
  a >>= \x -> 
  b >>= \y -> return (x * y)

mult (Just 2) (Just 3)
-- Just 6

mult Nothing Nothing
-- Nothing

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:

bradley219

#!/bin/bash

UUID=`defaults read /Applications/Xcode.app/Contents/Info DVTPlugInCompatibilityUUID`
echo "UUID=$UUID"

find ~/Library/Application\ Support/Developer/Shared/Xcode/Plug-ins -name Info.plist -maxdepth 3 | xargs -I{} defaults write {} DVTPlugInCompatibilityUUIDs -array-add "$UUID"

natecook1000

// NSScanner+Swift.swift
// A set of Swift-idiomatic methods for NSScanner
//
// (c) 2015 Nate Cook, licensed under the MIT license

import Foundation

extension NSScanner {
    
    // MARK: Strings

algal

func groupBy<T>(equivalent:(a:T,b:T)->Bool, items:[T]) -> [[T]] {
  var lastItem:T? = nil
  var groups:[[T]] = []
  var currentGroup:[T] = []
  for item in items {
    if lastItem == nil {
     // first item
      currentGroup.append(item)
    }
    else {

Ashton-W

#! /bin/bash

# DHC - Hacked to always return a 0 code when successful.

SIM_DEVICES_FOLDER=~/Library/Developer/CoreSimulator/Devices
SIM_RUNTIME_PRFIX=com.apple.CoreSimulator.SimRuntime

function usage () {
  echo "simulatorAppFolders (-s <name> | -d <device-type>) [-?] [-i <iOS version>] [-a <app-name>]"
  echo "-? show help, and prints simulators currently installed"

kristopherjohnson

import Foundation

/**
    Determine whether Optional collection is nil or an empty collection

    :param: collection Optional collection
    :returns: true if collection is nil or if it is an empty collection, false otherwise
*/
public func isNilOrEmpty<C: CollectionType>(collection: C?) -> Bool {
    switch collection {