CodeCrafters VS Exploring ES6

Compare CodeCrafters VS Exploring ES6 and see what are their differences

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CodeCrafters

Programming exercises for experienced engineers.

Exploring ES6

Upgrade to the next version of JavaScript

Landing page //
2023-10-13

Landing page //
2026-06-30

CodeCrafters

Website: codecrafters.io
Pricing URL: Official CodeCrafters Pricing
$ Details

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Exploring ES6

Website: leanpub.com
Pricing URL: -
$ Details: -

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CodeCrafters features and specs

No features have been listed yet.

Exploring ES6 features and specs

Comprehensive Coverage
Exploring ES6 provides an exceptionally thorough and detailed exploration of ES6 (ECMAScript 2015) features, covering everything from arrow functions and template literals to generators, proxies, and modules, making it one of the most complete references available for the specification.
Free to Read Online
The book is available to read for free online through Leanpub, making it highly accessible to developers of all backgrounds and financial situations who want to learn modern JavaScript.
In-Depth Explanations
Dr. Axel Rauschmayer is known for his deep, technically precise explanations. The book goes beyond surface-level tutorials and explains the 'why' behind design decisions in ES6, helping readers gain a genuine understanding of the language mechanics.
Well-Structured Organization
The book is organized into logical chapters that each focus on a specific ES6 feature or concept, making it easy to use both as a sequential learning resource and as a reference guide that you can jump into at any point.
Authoritative Source
Written by Dr. Axel Rauschmayer, a highly respected JavaScript expert and blogger, the content is reliable, accurate, and well-researched, drawing directly from the ECMAScript specification itself.

Possible disadvantages of Exploring ES6

Overwhelming Detail
The level of detail can be overwhelming for beginners or intermediate developers. The book sometimes dives into specification-level minutiae that may not be practical for everyday development, making it hard to distinguish essential knowledge from edge cases.
Dated Content
Since the book focuses specifically on ES6 (2015), it does not cover subsequent ECMAScript updates (ES2016–ES2024) such as async/await, optional chaining, nullish coalescing, and other modern features that are now standard in JavaScript development.
Dense and Academic Writing Style
The writing style can be quite academic and dense, which may make it less engaging or harder to follow compared to more conversational or example-driven JavaScript books. Some readers may find it dry.
Limited Practical Examples
While the book excels at explaining concepts theoretically, it can sometimes lack real-world, practical project-based examples that show how ES6 features are used together in actual application development scenarios.
Length Can Be Intimidating
The book is extremely long and extensive, which can be intimidating for readers who want a quick, concise introduction to ES6. It may take significant time commitment to work through the entire book.

Analysis of Exploring ES6

Overall verdict

Exploring ES6 by Dr. Axel Rauschmayer is an excellent, in-depth resource for understanding modern JavaScript (ECMAScript 6/ES2015) with clear explanations and practical examples.

Why this product is good

Written by Dr. Axel Rauschmayer, a well-respected JavaScript expert and educator
Provides thorough, detailed coverage of ES6 features with accurate technical explanations
Available to read for free online, making it accessible to everyone
Includes practical code examples that clarify complex concepts
Well-organized structure that lets you jump to specific topics as needed
Explains not just how features work but the reasoning and design decisions behind them

Recommended for

JavaScript developers wanting to master modern ES6 features
Programmers transitioning from ES5 to ES6/ES2015
Developers who prefer a reference-style book they can consult topic-by-topic
Self-learners who want a free, comprehensive resource
Experienced coders seeking deep understanding rather than surface-level tutorials

CodeCrafters videos

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Exploring ES6 videos

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Category Popularity

0-100% (relative to CodeCrafters and Exploring ES6)

Exploring ES6

Education

79 79%

Education

21% 21

Developer Tools

0 0%

Developer Tools

100% 100

Online Learning

100 100%

Online Learning

0% 0

Tech

54 54%

Tech

46% 46

User comments

Share your experience with using CodeCrafters and Exploring ES6. For example, how are they different and which one is better?

Social recommendations and mentions

Based on our record, CodeCrafters seems to be more popular. It has been mentiond 9 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

CodeCrafters mentions (9)

Ask HN: What skills do you want to develop or improve in 2026?
I had a lot of with Code Crafters. It's a paid platform, but they give you a basic walk through of different technologies, with full test suites. For example, you implement some basic Redis. It doesn't spoon feed you what to do, but breaks it down into manageable chunks. https://codecrafters.io/. - Source: Hacker News / 8 months ago
Learning Go the Hard Way
To make this happen, I'm starting with the Shell Challenge at CodeCrafters.io. - Source: dev.to / 8 months ago
Build your own shell : Codecrafters Edition
Have you ever thought of building your own shell — or anything you use in your daily tasks? It could be an IDE, a simple database, or even a text editor. In this blog, I’ll walk you through the exciting journey of building a shell using the Codecrafters platform. I’ll share why the experience is amazing and why you should absolutely give it a try! - Source: dev.to / about 1 year ago
Long weekends and short updates
This is where today's quick tip comes into play. Do you know Codecrafters.io? If you don't, let's remedy that now! It's a platform that monthly proposes building projects of different complexity, guiding you step by step in studying and developing. Some of the latest projects include reproducing your own version of Git, Redis, BitTorrent, or your Interpreter. - Source: dev.to / almost 2 years ago
Stop Re-Implementing Code: Use Extract Method in Rust
I recently started learning Rust using the awesome CodeCrafters website. - Source: dev.to / almost 2 years ago