Typescipt environment for development

$ mkdir -p ~/projects/dev/ts/my-new-ts-project && cd ~/projects/dev/ts/my-new-ts-project

$ npm init -y
$ yarn add --dev typescript ts-node
$ yarn add --dev @types/node

tsconfig.json

// You can generate default tsconfig.json
// $ ./node_modules/.bin/tsc --init

$ vi tsconfig.json

{
  "compilerOptions": {
    "strict": true,
    "noImplicitAny": true,
    "target": "esnext",
    "module": "commonjs",
    "baseUrl": "./src",
    "rootDir": "./src",
    "outDir": "./build",
    "allowJs": false,
    "moduleResolution": "node",
    "sourceMap": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "skipLibCheck": true,
    "removeComments": true,
    "esModuleInterop": true,
    "downlevelIteration": false,
    "noFallthroughCasesInSwitch": true,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "noPropertyAccessFromIndexSignature": true,
    "noUncheckedIndexedAccess": true,
    "forceConsistentCasingInFileNames": true,
    "resolveJsonModule": true
  },
  "exclude": ["node_modules"],
  "include": ["./src/**/*.ts", "./test/**/*.ts"]
}

Can be helpful if tests not needed.

"exclude": ["node_modules", "**/*.spec.ts"],

Compiler Options
https://www.typescriptlang.org/docs/handbook/compiler-options.html

$ vi package.json

package.json

***
"scripts": {
    "build": "NODE_PATH=./src tsc",
    "ts-node": "NODE_PATH=./src ts-node ./src/index.ts",
    "lint": "NODE_PATH=./src eslint src --ext js,ts,jsx,tsx",
    "test": "NODE_PATH=./src jest"
  },
***

Nodemon Eslint Jest for TypeScript WebPack for TypeScript

Example

Example from video course [FrontendMasters] Production-Grade TypeScript

https://github.com/mike-north/professional-ts

Configured project:
https://github.com/mike-north/professional-ts-my-lib