Blog · Complete Guides
Complete Guides
In-depth, start-to-finish guides to the languages and frameworks that power the modern web.
The Complete Guide to Async JavaScript in 2026
A complete guide to asynchronous JavaScript — the event loop, callbacks, promises, async/await, error handling, running tasks in parallel, cancellation and common pitfalls — with examples throughout.
Complete GuidesThe Complete Guide to CSS Flexbox in 2026
A complete guide to CSS Flexbox — the container and item properties, main and cross axes, alignment, wrapping, the flex shorthand and common layout patterns — with copy-paste examples throughout.
Complete GuidesThe Complete Guide to CSS Grid in 2026
A complete guide to CSS Grid — defining rows and columns, fr units, repeat and minmax, placing items, template areas, responsive auto-fit grids and subgrid — with copy-paste examples throughout.
Complete GuidesThe Complete Guide to Git in 2026
A complete, practical guide to Git — how it works, the core workflow, branching, merging vs rebasing, remotes, undoing changes, resolving conflicts and everyday commands — with real commands throughout.
Complete GuidesThe Complete Guide to npm in 2026
A complete guide to npm — package.json, installing packages, semver ranges, scripts, npx, lockfiles, npm ci vs install, workspaces, publishing and the npm v12 security changes — with commands throughout.
Complete GuidesThe Complete Guide to React Hooks in 2026
A complete guide to React Hooks — useState, useEffect, useContext, useRef, useReducer, memoization, transitions, the React 19 additions (use, Actions, useOptimistic) and custom hooks — with examples.
Complete GuidesThe Complete Guide to Regular Expressions in 2026
A complete guide to regular expressions (regex) in JavaScript — character classes, anchors, quantifiers, groups, alternation, flags, lookaround and the string methods — with practical examples throughout.
Complete GuidesThe Complete Guide to REST APIs in 2026
A complete guide to REST APIs — the principles, HTTP methods and status codes, resource URL design, authentication, pagination, versioning and modern error handling (RFC 9457) — with examples throughout.
Complete GuidesThe Complete Guide to TypeScript in 2026
A complete guide to TypeScript — types, interfaces vs type aliases, unions and narrowing, generics, utility types, the satisfies operator, tsconfig and modern features — with examples and current (2026) context.
Complete GuidesWeb Development Roadmap 2026: A Step-by-Step Guide
A practical, honest web development roadmap for 2026 — the order to learn HTML, modern CSS, JavaScript, TypeScript, Git, a framework, a backend and deployment, plus where AI-assisted coding fits.