JavaScript: The Hard Parts, v2 vs Complete Intro to Web Development v3

Goes deep on the JavaScript runtime model — thread of execution, the call stack, closure, the event loop, Promises and prototypes/classes — across roughly 6.5 hours. Reviewers consistently say it explains how JavaScript works "under the hood" rather than just syntax.

Will Sentance (Codesmith founder) is the most-praised element. Learners cite his blackboard diagrams, the "backpack" analogy for closure, and a Socratic, audience-paced delivery. The same intense, repetitive style is the one thing a minority find tiring.

Requires a $39/month Frontend Masters subscription rather than a one-time purchase — strong value if you use the wider catalog, weaker if you only want this one course. The course is included in the standard subscription.

This is a conceptual, exercise-and-whiteboard course, not a project build. There is no portfolio-worthy capstone, which some learners miss. The exercises are effective for drilling mental models but produce no artefact.

The mental models — call stack, closure, the event loop, async behaviour — directly explain bugs developers hit daily. Experienced developers report the course clarified concepts they had used for years without fully understanding.

HTML, CSS, JavaScript fundamentals plus a Wordle-clone capstone across roughly 12 hours 25 minutes. Praised as thorough for absolute beginners, but v3 was published in September 2022 and several modules predate modern CSS practices and the current Vite-driven tooling stack.

Brian Holt is the most consistently praised aspect across nearly a decade of Hacker News mentions. Even on the original v2 Show HN thread, commenters described his teaching as 'very good', 'thorough', and 'great' — the same words that recur in his React course discussions.

Requires a Frontend Masters subscription ($39/month) for a beginner curriculum that overlaps heavily with the free freeCodeCamp Responsive Web Design path and The Odin Project. The course notes on Holt's GitHub site are free, which partially offsets the paywall.

The Wordle-clone capstone is the only build-along project and ties HTML, CSS, JS and the DOM together cleanly. Less portfolio leverage than freeCodeCamp's five required projects, and pushes less on local dev environment than The Odin Project.

Strong foundation in browser fundamentals and a deliberate 'Git and Bash' module that competitors often skip. Weak on modern tooling depth — bundlers, package managers, deployment — which learners are expected to pick up in Holt's follow-on React course rather than here.