ts-config-problems
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JavaScript
ESM .ts problems
This repo demonstrates the problem with loading .ts config files. It uses cosmiconfig but it's a general problem outside of that package.
Note: This repo sets "type": "module" in package.json so all .js and .ts files are treated as ESM. You have to name files to .cjs or .cts if you want to use CommonJS.
Try to run the program:
node test.cjs
Of course, it fails because Node does not understand .ts files (specifically the import './foo.ts' code). So, let's try using ts-node
npx ts-node test.cjs
It still errors out, because import is not affected by ts-node. We need to use the experimental loader in Node.
node --loader ts-node/esm test.cjs
Now it works! But the solution is not great.