Ruby’s New Exception Keyword Arguments

Ruby’s New Exception Keyword Argumentsexception: false and exception: true In Ruby 2.6, a variety of Kernel methods get a new exception: false or exception: true keyword argument. When Kernel methods fail, some raise an error and some just return nil. This new feature lets you override that default behavior. TL;DR: In Ruby 2.6 these examples will all work: system 'not-a-command', exception: true #

[luccafort]

これって rescue nilみたいなことしなくてもexception: falseにしたらええんやで！という認識でいいのかな。Exception吐きたいときはtrueにしろと。

[tuto0621]

Integer('nope', exception: false) が可能になり、 Integer('nope') rescue nil に比べて3倍速くなる

[Nyoho]

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