Call a method on each object of a collection
def append_2s(word)
word + "ss"
end
['test', 'ab', 'ss'].map(&method(:append_2s)) #=> ['testss', 'abss', 'ssss']Written by Jean-Richard Lai
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2 Responses
Why don't use each?
['test', 'ab', 'ss'].each do {|a| append_2s(a) }
over 1 year ago
·
@emadb I think it is a little more elegant. But you can do it in even less chars with:
#removes whitespaces from items
['test ', ' ab', ' ss'].collect(&:strip)
over 1 year ago
·
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