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kodaitakahashi/catch_syntax.rb

Created October 5, 2016 09:09
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Kernel.#catch Kernel.#throwの構文
Raw
catch_syntax.rb
# catchの構文
catch (tag) do
# tag => 終了する場ためのオブジェクト throwから送られてくるものと一致する必要がある。
Raw
throw_syntax.rb
# throwの構文
throw (tag, value)
# tag => catchで定義した同一のオブジェクト
# value => 処理を終了した時の戻り値
# catchで定義しオブジェクトと同一ではない場合、 UncaughtThrowErrorが発生する。
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