ethers.js/tsconfig.base.json

{
    "compilerOptions": {
        "declaration": true,
        "declarationMap": true,
        "esModuleInterop": true,
        "forceConsistentCasingInFileNames": true,
        "importHelpers": true,
        "lib": ["es2020", "es5"],
        "moduleResolution": "node16",
        "noEmitOnError": true,
        "noFallthroughCasesInSwitch": true,
        "noImplicitAny": true,
        "noImplicitReturns": true,
        "noImplicitThis": true,
        "noUnusedLocals": true,
        "preserveSymlinks": true,
        "preserveWatchOutput": true,
        "pretty": false,
        "rootDir": "./src.ts",
        "strict": true,
        "sourceMap": true,
        "target": "ES2015"
    },
    "exclude": [],
    "include": ["./src.ts/**/*.ts"]
}