tsconfig.base.json

{
    "compilerOptions": {
        "module": "commonjs",
        "target": "es6",
        "esModuleInterop": true,
        "allowSyntheticDefaultImports": true,
        "declaration": true,
        "newLine": "LF",
        "sourceMap": true,
        "outDir": "build",
        "rootDir": "./",
        "baseUrl": "./",
        "noEmitOnError": true,
        "allowJs": true,

        "strict": true,
        "noImplicitAny": true,
        "strictNullChecks": true,
        "noImplicitThis": true,
        "alwaysStrict": true,

        "noUnusedLocals": false,
        "noUnusedParameters": true,
        "noImplicitReturns": true,
        "noFallthroughCasesInSwitch": true,
        "paths": {
            "test/*": ["./test/*"]
        }
    }
}