Check out example codes for "typescript config". It will help you in understanding the concepts better.

Code Example 1

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

Code Example 2

//type config configuration
{
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "build",
    "module": "ESNext",
    "moduleResolution": "node",
    "target": "ESNext",
    "lib": ["ESNext"],
    "typeRoots": ["node_modules/@types"],
    "strict": true,
    "esModuleInterop": true,
    "downlevelIteration": true,
    "skipLibCheck": true,
    "sourceMap": true,
    "allowSyntheticDefaultImports": true,
    "importHelpers": true,
    "noImplicitAny": false,
    "noUnusedParameters": false
  },
  "exclude": ["node_modules"],
  "include": ["src/**/*.ts"],
  "paths": {
    "tslib": ["node_modules/tslib/tslib.d.ts"]
  },
  "ts-node": {
    "compilerOptions": {
      "module": "CommonJS"
    },
    "files": true,
    "pretty": true,
    "typeCheck": true
  }
}

// my package.json
{
  "name": "express-ts-pattern",
  "version": "1.0.0",
  "description": "strong object oriented using typescript",
  "scripts": {
    "build": "webpack --config webpack-config.js -p",
    "start": "tsnd --watch src/**/*.ts -P tsconfig.json -T src/index.ts",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "restuwahyu13"
  },
  "keywords": [
    "node",
    "express",
    "express-ts"
  ],
  "author": "restuwahyu13",
  "license": "MIT",
  "dependencies": {
    "body-parser": "^1.19.0",
    "dotenv": "^8.2.0",
    "express": "^4.17.1",
    "mongoose": "^5.9.27",
    "typescript": "^3.9.7"
  },
  "devDependencies": {
    "@babel/core": "^7.11.0",
    "@babel/plugin-proposal-class-properties": "^7.10.4",
    "@babel/plugin-transform-async-to-generator": "^7.10.4",
    "@babel/preset-typescript": "^7.10.4",
    "@types/body-parser": "^1.19.0",
    "@types/express": "^4.17.7",
    "@types/mongoose": "^5.7.34",
    "@types/morgan": "^1.9.1",
    "@types/node": "^14.0.27",
    "babel-loader": "^8.1.0",
    "clean-webpack-plugin": "^3.0.0",
    "morgan": "^1.10.0",
    "terser-webpack-plugin": "^3.0.8",
    "ts-node": "^8.10.2",
    "ts-node-dev": "^1.0.0-pre.58",
    "tslib": "^2.0.1",
    "webpack-node-externals": "^2.5.0"
  }
}

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