Code School - videos (ruby, git, ios)

Videos

• Ruby Tapas: Naming Things
  • メソッド名の付け方が大事と言う話
  • RubyTapasの宣伝みたい
• Git Hooks
  • 公式ドキュメントをなぞっている感じ
  • post commitでpushしている、大胆
• iOS Categories ★★
  • UITextFieldにバリデーションを追加
    • 空白チェック
    • Eメールフォーマットチェック
  • Add methods without subclassing
  • Naming conventions
    • NSArray+FirstObject
    • @interface NSArray (FirstObject)
  • Project tree > Right click > New file > Objective-c category > category, category on
  • if field iskindOfClass UITextfield class
    • field text length > 1 -> fieldIsNotEmpty
  • NSRegularExpression regularExpressionWithPattern
    • numberOfMatches > 0
  • submitFields sender
    • if UITextField fieldIsNotEmpty
  • pros and cons
    • pros
      • Need to add a method to a build-in class
      • Need to add a method to all instances of a class
      • Group methods by functions to make it easier to read and maintain classes
    • cons
      • Can't add properties or instance variables
      • possible to accidentally modify a category methods later
  • Tips
    • Prefix (jf_fieldIsNotEmpty)
  • PCH (Pre-compiled header)
    • #ifdef __OBJC__