Created
April 8, 2015 09:54
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Rubyで引数のないメソッドを呼び出す際はも () を付けたほうが良い？
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| irb(main):031:0> foo = 111 | |
| => 111 | |
| irb(main):032:0> def foo() 222 end | |
| => :foo | |
| irb(main):033:0> foo | |
| => 111 | |
| irb(main):034:0> foo() | |
| => 222 |
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例えば
to_s()。例えば
nil?()、empty?()末日が? は変数名に使えないから、括弧いらないかな。