Tricks

The list of small context-free refactorings.

What is context-free refactoring?

"Context-free" means that you can derive all the types for refactoring straight from the given code sample.
"Refactoring" is a small set of changes to a code that highly improves readability, and/or perfomance.

Provide source link for your code, paste it right below the link, and describe each of the changes step-by-step.

Here is the example.

The refactorings are stored in the file of their language. Check the list of available languages:

All of them! If there is no refactorings of your language, don't be shy to PR!