Change Case with Motion in Vim

Commands you practise

gu{motion}

gu{motion} lowercases text from the cursor to the destination of the motion. It is the fastest way to silence shouting comments or config values.

gU{motion}

Convert text to uppercase using any motion. Pair it with e to quickly capitalize a word and make your TODOs stand out.

Levels

1. Quiet Down Headers (easy): Those HTTP headers are shouting. Lowercase them inside the quotes using gu.
2. REST Case Scenario (medium): Format this route file so HTTP methods are UPPERCASE and paths are lowercase.
3. Case Harmonizer (hard): Standardize this config: keys must be UPPERCASE, and values must be lowercase.

Each level opens a real Neovim session in your browser with a start file and a target file. Edit one into the other in as few keystrokes as you can, then race the vimbot's solution.