# Percent Notation Ruby has many uses for the `%` character. One of the more obscure uses is as a notion for custom delimited strings. Use the percent notation with a non-alphanumeric character to surround a string. ```ruby > %=Jurassic Park= => "Jurassic Park" > % Ghostbusters => "Ghostbusters" ``` It even works with balanced characters ```ruby > %(The Goonies) => "The Goonies" ``` This is useful for defining a string that has both types of quotes ```ruby > %[That'll be the "day"] => "That'll be the \"day\"" ``` It's also useful for creating horribly obfuscated code ```ruby > %=what===%?what? => true ``` h/t [Josh Davey](https://twitter.com/joshuadavey/status/615613617099046912)