TypeScript consistent casing (consistent-casing)

typescript-config/consistent-casing checks if the property forceConsistentCasingInFileNames is enabled in your TypeScript configuration file (i.e. tsconfig.json).

Why is this important?

If you are working on a project where developers use different OSes (e.g.: Windows and Linux), enabling this property will prevent issues related to the file casing and how the files are referenced in the code.

What does the hint check?

This hint checks if the compilerOptions property forceConsistentCasingInFileNames is enabled.

Examples that trigger the hint

By default, TypeScript doesn’t enforce this:

{
    ...
    "compilerOptions": {
        "target": "es5",
        ...
    },
    ...
}

Also setting the value to false will fail:

{
    ...
    "compilerOptions": {
        "forceConsistentCasingInFileNames": false,
        ...
    },
    ...
}

Examples that pass the hint

forceConsistentCasingInFileNames value is true:

{
    "compilerOptions": {
        "forceConsistentCasingInFileNames": true,
        ...
    },
    ...
}

Further Reading

• TypeScript Documentation