JavaScript & TypeScript Development
VS Code was originally built for JavaScript and TypeScript — it provides world-class tooling for both languages out of the box. This lesson covers the full JS/TS workflow.
1TypeScript Configuration
Create a tsconfig.json to enable strict type checking, module resolution, and output configuration. VS Code reads this automatically and adjusts IntelliSense accordingly.
{ "compilerOptions": { "target": "ES2022", "module": "NodeNext", "strict": true, "outDir": "dist" } }
2Auto-Imports & Organize Imports
VS Code auto-suggests imports when you reference a symbol. Accept the suggestion and the import statement is added automatically. Use Organize Imports (Shift+Alt+O) to remove unused imports and sort them alphabetically.
3Refactoring Tools
Select any symbol and press F2 to rename it across the entire project. Right-click for more refactors: Extract to Function, Extract to Constant, Move to New File, Convert to Arrow Function, and more.
4ESLint + Prettier Integration
{ "extends": [ "eslint:recommended", "plugin:@typescript-eslint/recommended", "prettier" ] }
5Debugging Node.js / Deno
Press F5 and select Node.js. VS Code creates a launch.json automatically. Set breakpoints, inspect variables, and step through your code. For Deno, install the official Deno extension and it handles everything for you.