Writing document is so important for developing, but it is really painful with Xcode. Think about how much time you are wasting in pressing '*' or '/', and typing the parameters again and again. Now, you can find the method (or any code) you want to document to, and type in `///`, the document will be generated for you and all params and return will be extracted into a Javadoc style, which is compatible with [appledoc](https://github.com/tomaz/appledoc), [Doxygen](http://www.stack.nl/~dimitri/doxygen/) and [HeaderDoc](https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/HeaderDoc/intro/intro.html). You can just fill the inline placeholder tokens to finish your document.