More than 5 years have passed since last update.

配列要素をClass名で振り分けたHashに

Ruby

Posted at 2013-05-02

仕事中にちょっと書いてみたんですが、実際やっぱりこんなことしなくても良かったので供養。

target = [1, :hoge, "Foo", :fuga, "Bar", 2]
target.inject({}){|acc, obj| (acc[obj.class.to_s.intern]||=[]) << obj; acc}
#=> {:Fixnum=>[1, 2], :Symbol=>[:hoge, :fuga], :String=>["Foo", "Bar"]}

You get articles that match your needs
You can efficiently read back useful information
You can use dark theme

What you can do with signing up