obj.tap{|x|...} â obj
Instance Public methods
Yields x to the block, and then returns x. The
primary purpose of this method is to âtap intoâ a method chain, in order to
perform operations on intermediate results within the chain.
1 2 3 4 | (1..10) .tap {|x| puts "original: #{x.inspect}"} .to_a .tap {|x| puts "array: #{x.inspect}"} .select {|x| x%2==0} .tap {|x| puts "evens: #{x.inspect}"} .map { |x| x*x } .tap {|x| puts "squares: #{x.inspect}"} |
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