IDE ↔ Dev tool to write/build/test Source Code

aka IDE, Integrated-Development-Environment

VS Code

Best FOSS IDE, with extensive plugins, FOSS JS Electron by MS

source code editor

build automation tool

debugger

Linter

Dev tool to spell check Code Statically, flag bugs/inconsistencies, give warnings, suggest best practices, etc

References

1. Language Service ↔ component layer of TSC to provide tool integration with IDE for more features

2. TS Playground ↔ online editor for TS, full feature IDE

3. VS Code ↔ Best FOSS IDE, with extensive plugins, FOSS JS Electron by MS

4. github codespace ↔ (feat)(paywall) to open github Repo in online cloud IDE playground

5. Jetbrains ↔ IDE popular for Java. Kotlin dev

6. Tailwind CSS ↔ CSS Framework with huge Utility Class collection, VSC IDE-support for efficient consistent minimal CSS