NicholasTD07

static func getPrimes(to n: Int) -> [Int] {
    let xmody = (1...n)
        .map { x in (1...n).map { y in x % y } }
        
    let primes = xmody
        .map { mods in
            mods.enumerate()
            .filter { y, mod in mod == 0 }
            .map { y, mod in y + 1 } // divisors for x
        }

NicholasTD07

/// # Things go wrong in Swift 2.1

/// ## A protocol overriding/giving default implementation to its parent's methods
/// If you have a class conform to this protocol and try compile, you will get segmentation fault 11.
protocol SingleSectionTableViewDataSource: UITableViewDataSource {
    typealias ItemType

    var items: [ItemType] { get set }
}

NicholasTD07

Weird Xcode Problems?

rm -rf /Library/Developer/ (Or, you can rename it. It's probably safer to rename it.)

This fixed

• Xcode 6.4: icons in Simulator were garbled

NicholasTD07

Blocked by GFW

GFW makes it harder (by blocking things) for me to use these:

• Anything use https
• berks
• git
• carthage
• Websites (some)
• Google

NicholasTD07

How to Download iOS Simulator (Xcode) in Command Line and Install it

For faster connection speed and more flexibility.

Steps

0. Start Xcode in command line by running this in commandline /Applications/Xcode.app/Contents/MacOS/Xcode
1. Start downloading of the simulator
2. Cancel it. YES CANCEL IT!
3. You will get a message like this:

NicholasTD07

#!/usr/bin/env xcrun swift
// Usage: path/to/TimeTracking.swift

// Go to bottom to see how it's used.

// The MIT License (MIT)

// Copyright (c) 2015 Nicholas T.

// Permission is hereby granted, free of charge, to any person obtaining a copy

NicholasTD07

#!/usr/bin/env python2
# Remove all merged branches, except ignored as specified in IGNORE_BRANCHES

import subprocess

IGNORE_BRANCHES = ['master', 'develop']

def main():
    checkout_branch('master')
    merged_branches_except_ignored = filter_branches_with_ignores(

NicholasTD07

import UIKit
import SnapKit

class SomeViewController: UIViewController {
  var addButton = UIButton()
  var helloWorldLabel = UILabel()
  
  override func viewDidLoad() {
    let superView = view
    let views = [

NicholasTD07

//
//  NSDate+timeAgo.swift
//
//
//  Created by Nicholas Tian on 19/08/2015.
//  Copyright (c) 2015 nickTD. All rights reserved.
//

import Foundation

NicholasTD07

for fontFamily in UIFont.familyNames() {
  println("family: \(fontFamily)")
  for font in UIFont.fontNamesForFamilyName(fontFamily as! String) {
    println("font: \(font)")
  }
}