Software Alternatives & Startups

Exploring ES6 VS HackerRank

Compare Exploring ES6 VS HackerRank and see what are their differences

Exploring ES6

Upgrade to the next version of JavaScript

Rating
0 reviews
HackerRank

HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

Rating
0 reviews
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, HackerRank seems to be more popular. It has been mentioned 67 times since March 2021.

social mentions
0 vs 67
Developer Tools popularity
100% vs 0%
alternatives listed
17 vs 240+

Base details

Website, pricing, platforms and company facts side by side.

EES
Exploring ES6
HackerRank
Website leanpub.com hackerrank.com
Listed in

Features and specs

What each product offers, as listed by its team.

EES
Exploring ES6 5 features
HackerRank 7 features
  • 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

  • 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.
  • Skill Assessment
    HackerRank provides a structured way to assess coding skills through a wide range of programming challenges and problems.
  • Wide Range of Languages
    Supports numerous programming languages, making it versatile for users with different preferences and expertise.
  • Interview Preparation
    Offers various interview preparation kits and company-specific challenges to help candidates prepare for job interviews.
  • Community and Collaboration
    A community of coders where users can discuss problems, share solutions, and collaborate on coding projects.
  • Company Recruitments
    Many companies use HackerRank for recruitment, and performing well on the platform can lead to job opportunities.
  • Leaderboard and Gamification
    Features like leaderboards and gamification elements motivate users to improve their rankings and skills continuously.
  • Educational Resources
    Provides tutorials and explanations that help users understand algorithms and data structures better.

Possible disadvantages

  • Steep Learning Curve
    Beginners may find some problems too challenging, which can be discouraging if they lack foundational knowledge.
  • Potential Focus on Competitive Programming
    The platform may emphasize competitive programming skills, which are not always directly applicable to all real-world software development scenarios.
  • Quality Variance in Problems
    The quality and difficulty of problems can vary, which may affect the consistency of the learning experience.
  • Limited Real-World Project Experience
    The focus on algorithms and coding challenges means there's less emphasis on full-scale project development experience.
  • Limited Feedback
    Automated grading provides limited feedback, which may not be enough for users to understand their mistakes fully.
  • Subscription Costs
    Access to some premium content and features requires a subscription, which may not be affordable for all users.
  • Network Dependency
    Requires a good internet connection to participate in coding challenges and access resources, which may be a limitation for some users.

Analysis

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

EES
Exploring ES6
HackerRank

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

Overall verdict

  • Yes, HackerRank is generally considered a good platform for improving coding skills and preparing for technical interviews. It is widely used by developers to hone their coding abilities and by companies to assess candidates' coding proficiency.

Why this product is good

  • HackerRank is a popular platform for coding enthusiasts, offering a wide range of programming challenges and competitions. It stands out for its extensive problem library, which is beneficial for practice and learning. The platform supports multiple programming languages and provides detailed feedback on submissions, making it a valuable tool for both beginners and experienced programmers.

Recommended for

    HackerRank is recommended for students, individual learners, and job seekers looking to improve their coding skills, as well as for companies seeking an efficient way to evaluate candidates' technical abilities during the hiring process.

Videos

Walkthroughs and reviews on video.

EES
Exploring ES6 0 videos + Add
HackerRank 3 videos + Add

No Exploring ES6 videos yet. You could help us improve this page by suggesting one.

Is HackerRank A Good Idea?

More videos

  • - LeetCode vs HackerRank
  • - Difference between HackerRank, LeetCode, topcoder and Codeforces

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
EES
Exploring ES6
HackerRank
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

EES
Exploring ES6 no reviews yet
HackerRank no reviews yet

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

EES
Exploring ES6 0 mentions
HackerRank 67 mentions

Tracking Exploring ES6 since Jun 2026.

  • How to Stop Getting Lost in Endless Resources and Stay Focused as a Developer
    This way, you transfer what you already know (problem-solving) but only change the syntax. Platforms like Hackerrank are also great to solve the same problem in different languages and learn from other people’s solutions. - Source: dev.to / about 1 year ago
  • Pick up new languages faster this way!
    Firstly, solve some common data structure problems with it. Implement some data structures like arrays, linked lists, stacks, queues, etc. You can check common problems on LeetCode, Hackerank or some other resources. - Source: dev.to / over 2 years ago
  • Offline alternative of hackerrank.com to practice coding offline
    I don't have a consecutive internet connection and I can't keep up learning process so I started practicing in hackerrank.com I have started some challenges in python and c++ there. Thus I have no internet connection so I cannot practice... Source: almost 3 years ago

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Alternatives to Exploring ES6 and HackerRank

When comparing Exploring ES6 and HackerRank, you can also consider the following products.