Thing is you can now have many of the benefits of TS without using it in your own code. Most popular libraries come with type definitions now and an editor like

Thing is you can now have many of the benefits of TS without using it in your own code. Most popular libraries come with type definitions now and an editor like VS Code will take advantage of this and give you the same autocompletions TS would. TS introduces some friction for setting things up, it slows you down in initial development, increases LoC, etc. I do like the type documentation in function signatures, the autocompletion and the refactor support, but I think the project needs to be of a certain size for the cost/benefit trade off favors TS, typically a project that goes on for 6+ months and with 2 team members or more. Anything smaller than that and I wouldn't choose it myself.