The library exists of various support classes for use with the DOM and TypeScript.
It exists of code snippets found on the internet and conversions from other libraries.
Add as submodule (run from root of Git project):
git submodule add https://github.com/JoshaMunnik/UF-typescript-dom src/UF-dom
git submodule update --init --recursive --remote
This assumes all source files are in the src folder.