Tooling

npm and package.json, bundlers, ESLint and Prettier, debugging with DevTools.

1. 1npm and package.jsonDependencies vs devDependencies, semver and ranges, the lock file, commands.
2. 2Bundlers and buildsTranspiling, the module graph, tree shaking, code splitting, hashes; Turbopack and Vite.
3. 3ESLint and PrettierLinter vs formatter, flat config, useful rules, automation, Biome.
4. 4Debugging with DevToolsThe Chrome DevTools panels, the console, breakpoints and how to read an error.