yutailang0119

# ~/.config/fish/functions/xcode.fish

function xcode -d "Open file by Xcode"
    set -l file $argv[1]
    set -l a_option $argv[2]
    set -l application $argv[3]

    if test -z $a_option
        set a_option -a
        set application Xcode

yutailang0119

import Foundation

enum Phrase: Int, CustomStringConvertible {
    case zun = 0
    case doko = 1
    
    var description: String {
        switch self {
        case .zun:
            return "ずん"

yutailang0119

let values: [Int?] = [1, 2, nil, 4, 5]

for value in values where value != nil {
    print(value!, type(of: value!))
}

for case let value? in values {
    print(value, type(of: value))
}

yutailang0119

# This is Git's per-user configuration file.
[user]
	name = 
	email = 
[core]
	excludesfile = 
[color]
  ui = auto
[difftool "sourcetree"]
	cmd = opendiff \"$LOCAL\" \"$REMOTE\"

yutailang0119

let data = """
[
    {"id": 1, "name": "yutaro"},
    {"id": 2, "name": "yutailang"}
]
""".data(using: .utf8)!

struct User: Codable, CustomStringConvertible {
    let id: Int
    let name: String

yutailang0119

import UIKit

// Genericsだけでreturnの型を決めたい
struct GenerucTest1<ViewType: UIView> {
  
    func loadView() -> ViewType {
        return UIView() // error return UIView() as! ViewType
    }
    
}

yutailang0119

//例えばUITableViewの更新

@IBOutlet weak var tableView: UITableView!
let str = "hoge"

// 1
let complete1 = { [weak self]() in 
    if let weakSelf = self {
        print(weakSelf.str)               // プロパティにアクセスする => str
        weakSelf.tableView.reloadData()   // メソッドを使う

yutailang0119

// Swift2.x
dispatch_async(dispatch_get_main_queue()) { [weak self]() in
    if let weakSelf = self {
        weakSelf.tableView.reloadData()
    }
}

//Swift3.0
DispatchQueue.main.async { [weak self] in
    if weakSelf = self {

yutailang0119

struct Hoge {
  let id: Int
  let title: String
  let fuga: Fuga? //更にstructを内包
  
  //メンバワイズイニシャライザ
  init(id: Int, title: String,fuga: Fuga?) {
    self.id = id
    self.title = title
    self.fuga = fuga