VS Code
CodePen
GitHub
Node.js
RegExr
JSFiddle
CodeSandbox
Free ebook for the JS Beginners

Final Round AI - Interview Copilot
interviewing.io
Interview Prep AI
LockedIn AI
ParakeetAI
Yoodli
InterviewBee AI
Practice real interviews with an AI voice interviewer that listens, responds, and scores you. Get feedback on your STAR answers, pacing, and filler words. Try it free, no install needed.

Which is more popular?
Based on our record, Eloquent JavaScript seems to be more popular. It has been mentioned 218 times since March 2021.
Website, pricing, platforms and company facts side by side.
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EJS
Eloquent JavaScript
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| Website | eloquentjavascript.net | instantinterview.app |
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What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review
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Instant Interview Overview
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing Eloquent JavaScript and InstantInterview.app.
InstantInterview.app's answer:
I was looking for a tool to practise my interview skills, but everything I found was either too expensive, didn't give useful feedback, or wasn't conversational so I built it for myself, then realised others needed it too.
InstantInterview.app's answer:
Anyone anxious about upcoming interviews who wants realistic practice and proof they're improving.
InstantInterview.app's answer:
Purpose-built voice to voice interviews with measurable feedback
InstantInterview.app's answer:
Real-time AI voice interviews with quantified feedback (STAR scores, WPM, filler rate), no scripts, measurable progress.
Share your experience with using Eloquent JavaScript and InstantInterview.app. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

If you haven’t read Eloquent JavaScript , go check it out. It’s one of my all-time favourite programming books — hands down. - Source: dev.to / 12 months ago
Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate... - Source: dev.to / almost 2 years ago
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS... - Source: Hacker News / about 2 years ago
Tracking InstantInterview.app since Apr 2026.
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