[FEATURE REQUEST] Unify Programming Languages to a Single Standard

[elliot-huffman]

Is your feature request related to a problem? If so, please give a short summary of the problem and how the feature would resolve it
There is no unified coding language across this project.

Describe the preferred solution
Convert all JS to TS.

Describe alternatives you've considered
Convert all TS to JS.

Additional context
A single unified language would reduce the maintenance complexity of the project (no more duplicated IDE configs for JS and TS files), ensure type consistency across all files, increase bug checking pre-shipping, increase security due to tighter input validation, elimination of a dual transpile configuration (no need to output types separately [tsconfig.build-types.json] in a build command). A single tsconfig.json for the whole project is possible because of this too and other project simplifications (reduced lint config complexity) are possible too.

I would argue that TypeScript is the superior choice rather than JavaScript as it has more features and automatically transpiles to JS with the best practices built into the typescript compiler.

See this project as an example of a project that is a single language that outputs with types and low overhead (includes mocha tests):
https://github.com/Software-Hardware-Integration-Lab/ObjectID-Converter

Reference Documentations/Specifications
https://www.typescriptlang.org/
https://github.com/Software-Hardware-Integration-Lab/ObjectID-Converter/blob/main/tsconfig.json
https://github.com/Software-Hardware-Integration-Lab/ObjectID-Converter/blob/main/eslint.config.mjs

P.s.
As usual, I am willing to make a PR, my other PRs need to be merged first for simplicity on my side before I start working on this.

[MichaelSun90]

Thanks again for helping on this 🙇 . The files should be migrated into typescript beside the test files. I remember that we worked on migrating the test files as well to typescript a while back and there may also be a PR as well.