tsconfig.base.json

{
  "compilerOptions": {
    /* Projects */
    "incremental": true /* Save .tsbuildinfo files to allow for incremental compilation of projects. */,

    /* JavaScript Support */
    "checkJs": true /* Enable error reporting in type-checked JavaScript files. */,

    /* Interop Constraints */
    "verbatimModuleSyntax": false /* Do not transform or elide any imports or exports not marked as type-only, ensuring they are written in the output file's format based on the 'module' setting. */,
    // If --module=NodeNext, --esModuleInterop can be omitted. However, it is set just in case.
    "esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */,
    "forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */,
    "resolveJsonModule": true /* Include modules imported with .json extension. */,

    /* Type Checking */
    "strict": true /* Enable all strict type-checking options. */,
    "noUnusedLocals": false /* Enable error reporting when local variables aren't read. */,
    "noUnusedParameters": false /* Raise an error when a function parameter isn't read. */,
    "exactOptionalPropertyTypes": true /* Interpret optional property types as written, rather than adding 'undefined'. */,
    "noImplicitReturns": true /* Enable error reporting for codepaths that do not explicitly return in a function. */,
    "noFallthroughCasesInSwitch": true /* Enable error reporting for fallthrough cases in switch statements. */,
    "noUncheckedIndexedAccess": true /* Add 'undefined' to a type when accessed using an index. */,
    "noImplicitOverride": true /* Ensure overriding members in derived classes are marked with an override modifier. */,
    "noPropertyAccessFromIndexSignature": true /* Enforces using indexed accessors for keys declared using an indexed type. */,
    "allowUnusedLabels": false /* Disable error reporting for unused labels. */,
    "allowUnreachableCode": false /* Disable error reporting for unreachable code. */,

    /* Completeness */
    "skipLibCheck": true /* Skip type checking all .d.ts files. */
  }
}