Objective-C

unrecognized selector sent to instance

method missing on the instance http://ye-system-engineer.blogspot.jp/2010/08/iphoneunrecognized-selector-sent-to.html?m=1

NSUnknownKeyException this class is not key value coding-compliant for the key

Xcode - NSUnknownKeyException this class is not key value coding-compliant for the keyでドハまりした - Qiitaqiita.com MainStoryboard で不要になったオブジェクトプロパティを削除(ソースコード上で) ガワでは消えていても中身が残ってる

Why use label in multiple args

To produce descriptive and readable code. Objective-C does not have [keyword parameters, named parameters] keyword parameters https://robots.thoughtbot.com/ruby-2-keyword-arguments named parameters http://docs.scala-lang.org/tutorials/tour…