Support finding a `jsconfig.json` with `tsc -p .`

Search Terms

jsconfig project

Suggestion

When I run tsc -p . on a JavaScript project with jsconfig.json and // @ts-check with JSDoc it complains about not finding a tsconfig.json

Currently I have to run tsc -p jsconfig.json --maxNodeModuleJsDepth 0 to check my JavaScript project.

~/projects/sync-wait-group on master*
$ tsc -p .
error TS5057: Cannot find a tsconfig.json file at the specified directory: '.'.

It tells me that tsconfig.json does not exist.

Adding detection for jsconfig.json and turning --maxNodeModuleJsDepth 0 on by default ( which we do for tsconfig.json but not jsconfig.json ) would be a good user experience improvmenent.

Use Cases

Being able to use the tsc cli on a JavaScript + JSDoc project.

Examples

tsc -p . will "just work" for a JavaScript project.

Checklist

My suggestion meets these guidelines:

• This wouldn't be a breaking change in existing TypeScript/JavaScript code
• This wouldn't change the runtime behavior of existing JavaScript code
• This could be implemented without emitting different JS based on the types of the expressions
• This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

Start by reproducing the reported tsc -p . behavior in a JavaScript project containing jsconfig.json and // @ts-check with JSDoc. Trace how the tsc CLI resolves project configuration and applies maxNodeModuleJsDepth; done means tsc -p . discovers jsconfig.json and uses the intended default without requiring explicit flags.