tap_test.rb

a = 1.tap {|i| puts i + i}
a # => 1

b = 1.tap {|i| break i + i}
b # => 2

# >> 2

#lam = lambda {|i| return 1}

def use_proc
  pro = proc {|i|
    return i + 1
  }
  result = pro.call(1)
  return result + 3
end

use_proc # => 2


def use_lambda
  lam = lambda {|i|
    return i + 1
  }
  result = lam.call(1)
  return result + 3
end

use_lambda # => 5


# >> 2