Ruby arrays: %w vs %W

arrays, ruby

Solution

%w quotes like single quotes `''` (no variable interpolation, fewer escape sequences), while %W quotes like double quotes `""`.

irb(main):001:0> foo="hello"
=> "hello"
irb(main):002:0> %W(foo bar baz #{foo})
=> ["foo", "bar", "baz", "hello"]
irb(main):003:0> %w(foo bar baz #{foo})
=> ["foo", "bar", "baz", "\#{foo}"]

Problem

Original source