🌱 %w and %W in Ruby

🌿 What? §

• 🌱 %w return an splited array from a input string by space.

irb> %w(I am from Vietnam)
#=> ["i", "am", "from", "Vietnam"]

• 🌱 %W is similar %w but allows receive interpolation value.

irb> country = "Vietnam" 
irb> %w(I am from #{country})
#=> ["i", "am", "from", "\#{country}"]
 
irb> %W(I am from #{country})
#=> ["i", "am", "from", "Vietnam"]

• 🌱 Similar with %q, %Q, %i, %I, …

🌿 Refer §

• https://til.hashrocket.com/posts/aqkz0yqdky-the-difference-between-w-and-w-in-ruby