DevAndArtist

Path	Protocol
/swift/stdlib/public/core/AnyHashable.swift:16	_HasCustomAnyHashableRepresentation
/swift/stdlib/public/core/BidirectionalCollection.swift:21	_BidirectionalIndexable
/swift/stdlib/public/core/BridgeObjectiveC.swift:19	_ObjectiveCBridgeable
/swift/stdlib/public/core/Collection.swift:20	_IndexableBase
/swift/stdlib/public/core/Collection.swift:176	_Indexable
/swift/stdlib/public/core/CompilerProtocols.swift:193	_ExpressibleByBuiltinIntegerLiteral
/swift/stdlib/public/core/CompilerProtocols.swift:240	_ExpressibleByBuiltinFloatLiteral
/swift/stdlib/public/core/CompilerProtocols.swift:283	_ExpressibleByBuiltinBooleanLiteral

stefanbuck

#!/usr/bin/env bash
#
# Author: Stefan Buck
# License: MIT
# https://gist.github.com/stefanbuck/ce788fee19ab6eb0b4447a85fc99f447
#
#
# This script accepts the following parameters:
#
# * owner

sgr-ksmt

extension DispatchQueue {
    class func mainSyncSafe(execute work: () -> Void) {
        if Thread.isMainThread {
            work()
        } else {
            DispatchQueue.main.sync(execute: work)
        }
    }

    class func mainSyncSafe<T>(execute work: () throws -> T) rethrows -> T {

camdenfullmer

@implementation CMFWallpaper

+ (void)setImage:(UIImage *)image {
    NSAssert([PHPhotoLibrary authorizationStatus] == PHAuthorizationStatusAuthorized, @"access to photos is needed to set the wallpaper");
    
    NSString *path;
#if TARGET_OS_SIMULATOR
    path = @"/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/PhotoLibrary.framework";
#else
    path = @"/System/Library/PrivateFrameworks/PhotoLibrary.framework";

JeOam

Update: https://www.cyanhall.com/posts/notes/7.homebrew-cheatsheet/#java

on El Capitan, after installing the brew...

$ brew update
$ brew tap caskroom/cask
$ brew install Caskroom/cask/java

And Java 8 will be installed at /Library/Java/JavaVirtualMachines/jdk1.8.xxx.jdk/

mr-pinzhang

在 Xcode 里下载文件真的是一种折磨, 特别是每次 Xcode 大版本更新都会遇到新的下载内容. 经过一翻周折, 本人找到一个方法可以轻松快速便捷地下载和安装对应的 Simulator 和 Doc 文件

1. 在 Mac 下, 打开 Xcode, 进入 Preference 中的 Downloads 面板
2. 点击任意的下载按钮
3. 打开系统帮助工具 Console
4. 稍等一会儿, 在 Xcode 里取消下载, 然后你会在 Console 里面看到对应的下载地址 (对应的 Cosnole Message 是 (DVTDownloadable: Download Cancelled. Downloadable: ...) 之类的)
5. 复制对应的链接地址, 到某雷或者任何比 Xcode 下载快的工具里
6. 等待下载完成, 进入 /Users/#{Username}/Library/Caches

lexrus

• Array 是 value type，使用 structs 实现
• 数据类型没有隐式转换
• 对于 String，count() 的复杂度是 O(n)，每一个 Character 都是 unicode scalars 的序列
• raw values 和 associated values 的区别
• 如果必要，对于实现了 _ObjectiveCBridgeable 的 value types 会被自动桥接成 reference types
• 讲一下 unowned 和 weak 的区别
• 改 struct 的属性的方法名前要加 mutating，但如果这个 struct 用 let 声明的，改不了。修正：网友指出用 nonmutating set 也可以改属性。
• nil 和 .None 的区别
• capture list in closure
• 举一个 guard ... where 的例子

leichunfeng

//
//  NSNull+LCFMessageForwarding.h
//  NSNull
//
//  Created by leichunfeng on 15/12/22.
//  Copyright © 2015年 leichunfeng. All rights reserved.
//

#import <Foundation/Foundation.h>

krzyzanowskim

import Cocoa

// for-in
func checkForIn(array: [Int], dict: [Int: String]) {
    for num in array where dict[num] != nil {
        num
    }
}

checkForIn([1,2,3,4], dict: [1:"one", 2:"two"])

erica

import Cocoa

// Interactive Playground Alert Utilities

public struct WindowManager {
    internal static var screen: NSScreen! = NSScreen.mainScreen()
    internal static var activationToken: dispatch_once_t = 0
    internal static func buildWindow() -> NSWindow {
        dispatch_once(&WindowManager.activationToken) {
            NSApplication.sharedApplication().setActivationPolicy(.Regular) // show icon in dock