module Stringex::StringExtensions::PublicInstanceMethods

"Foo bar".replace_whitespace("-") # => "Foo-bar"
"Foo bar".replace_whitespace # => "Foo bar"

string may be specified as an argument. Examples:
Replace runs of whitespace in string. Defaults to a single space but any replacement

def replace_whitespace(replacement = " ")
  gsub(/\s+/, replacement)
end