Ruby - Using lambda with array each method

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Introduction

The following code iterates over an array of strings, capitalizing each string in turn.

The array of capitalized strings is then assigned to the d1 variable:

Demo

d = lambda{|x| x.capitalize! }
d1 = ["hello","good day","how do you do"].each{ |s| d.call(s)}
puts(d1.inspect)        #=> ["Hello", "Good day", "How do you do"]
# from w  w w .j  ava 2 s .  c om

Result

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