Arrays

Arrays can also be used for:#

  • Stack
  • Queue
  • LinkedList.

%w#

  • %w string literal creates an Array of Strings if you supply words separated by whitespaces inside the brackets.
  • Treats given string as inside single quotes.
40] pry(main)> %w[a b c d]
=> ["a", "b", "c", "d"
[44] pry(main)> %w[a b #{c} d]
=> ["a", "b", "\#{c}", "d"]

%W#

  • treats all supplied words in the brackets as double-quoted Stringss
[43] pry(main)> c = 3
=> 3
[45] pry(main)> %W[a b c d]
=> ["a", "b", "c", "d"]
[47] pry(main)> %W[a b #{c} d]
=> ["a", "b", "3", "d"]

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