Is the tsc command running without any effect, disregarding the tsconfig file?

After integrating typescript into my project and setting up a tsconfig.json, I decided to keep the existing .js files as they are for now. To achieve this, I added allowJS set to true in the tsconfig.

However, running tsc yielded no results, and even using tsc -p . did not work either. The version of Typescript being used is 3.8.3. As a workaround, I attempted to compile a single file:

tsc src/index.js
error TS6504: File 'src/index.js' is a JavaScript file. Did you mean to enable the 'allowJs' option?

It seems like the tsconfig file is not being recognized at all. What could be causing this issue? My operating system is Windows.

typescript

Answer №1

A common issue is when tsc ignores your tsconfig.json due to passing a file for processing.

The Typescript documentation states:

When input files are specified on the command line, tsconfig.json files are ignored.

Here is more information about tsconfig.json from Typescript docs.

Ensure to use the "include" or "files" keys properly in your tsconfig.json.

{
    "compilerOptions": {
        "allowJs": true,
        "outDir": "dist"

    },
    "files": [
        "src/index.js"
    ]
}

To resolve this, run tsc again and the compiler will successfully create a new directory named dist with your index.js file.

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