Support --input-type=ts

[innermatrix]

Acknowledgements

• I read the documentation and searched existing issues to avoid duplicates
• I understand this is a place to report a confirmed bug (not seek debugging help)
• I understand this is a collaborative open source project, and relies on community contributions
• I have read and understood the Contribution guide

Minimal reproduction URL

https://stackblitz.com/edit/node-xghdes?file=index.ts

Version

v4.7.2

Node.js version

v18.18.2

Package manager

yarn

Operating system

macOS

Problem & expected behavior (under 200 words)

All of the following failed with a SyntaxError:

echo "const x: string[] = ['']" | npx -s tsx
echo "const x: string[] = []" | npx -s tsx
echo "const x: Array<string> = ['']" | npx -s tsx
echo "const x: Array<string> = []" | npx -s tsx
echo 'fn<{ prop: Array<string> }>();' | npx -s tsx
echo 'fn<{ prop: string[] }>();' | npx -s tsx

All are valid TS AFAIK

Contributions

• I'm interested in working on this issue
• I'm willing to offer financial support

[privatenumber]

This is expected behavior based on your input—as there's nothing describing that the input is TypeScript—, but looks like tsx will need to add support for --input-type=ts: https://nodejs.org/api/packages.html#--input-type-flag