A practical, in-depth comparison of traditional password-based authentication and WebAuthn (passkeys). Learn how WebAuthn mitigates common password risks, the technical foundations, real-world adoption challenges, and a step-by-step migration playbook for teams ready to go passwordless.
Practice realistic, high-impact JavaScript scenarios that employers care about. Learn specific prompts, expected approaches, and sample answers to level up your mock interviews and impress hiring teams.
A practical, security-first guide for web developers to move beyond passwords using the Credential Management API and WebAuthn. Learn secure patterns, integration tips, migration strategies, and server-side considerations to deliver passwordless or hybrid auth that improves security and UX.
A practical, in-depth exploration of advanced JSON parsing and stringifying behaviors in JavaScript - covering NaN/Infinity, -0, BigInt, Dates, functions/undefined, circular references, revivers/replacers, prototype-pollution risks, streaming large JSON, and safe patterns you can apply today.
A practical guide explaining what JavaScript minification and obfuscation do, how they differ, when to use each, security implications, tooling, and best-practice checklist for safe build pipelines.
A deep dive into why eval and its cousins (new Function, setTimeout(string)) are dangerous, illustrated with real-world-style examples and concrete mitigations for web and Node.js applications.
A practical, in-depth guide to WebAuthn (FIDO2) - how it works, why it’s more secure than passwords, and step-by-step implementation guidance with code samples for registration and authentication.
Learn how the Permissions API helps you query and monitor permission states, implement respectful UX patterns, and build privacy-aware web apps. Includes practical code examples and real-world scenarios.