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RegExr VS Codewars

Compare RegExr VS Codewars and see what are their differences

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RegExr logo RegExr

RegExr.com is an online tool to learn, build, and test Regular Expressions.

Codewars logo Codewars

Achieve code mastery through challenge.
  • RegExr Landing page
    Landing page //
    2023-07-28
  • Codewars Landing page
    Landing page //
    2023-09-12

RegExr features and specs

  • User-Friendly Interface
    RegExr offers an intuitive and visually appealing interface that makes it easy for users to write, test, and understand regular expressions.
  • Real-time Feedback
    Changes to the regular expression and input text are reflected immediately, allowing users to see the effects of their adjustments in real-time.
  • Built-in Cheatsheet
    RegExr includes a handy cheatsheet that provides quick access to common regex patterns and syntax, making it easier for users to learn and reference rules.
  • Community Examples
    Users can explore and share community-generated regex patterns, which can serve as valuable examples or starting points for creating their own regex.
  • Detailed Explanation
    Each part of the regex pattern can be hovered over to display detailed tooltips explaining its function, aiding in the understanding of complex expressions.
  • Cross-Platform Accessibility
    As a web-based tool, RegExr can be accessed from any modern browser without the need for installation, making it convenient to use on multiple devices.

Possible disadvantages of RegExr

  • Limited Offline Use
    Since RegExr is a web-based application, it requires an internet connection, limiting its utility for users who need to work offline.
  • Learning Curve
    While the tool is user-friendly, users still need to have a foundational understanding of regular expressions to use RegExr effectively.
  • Performance Issues
    For extremely large inputs or very complex regular expressions, the tool may experience performance lags or slowdowns.
  • Limited Advanced Features
    RegExr may lack some advanced features found in more specialized or professional regex tools, such as integration with development environments or extensive scripting capabilities.
  • Privacy Concerns
    Users inputting sensitive data need to be cautious, as the web-based nature of the tool could raise privacy or data security concerns.

Codewars features and specs

  • Wide Range of Challenges
    Codewars offers a broad spectrum of coding challenges ranging from easy to very difficult, catering to all skill levels.
  • User Engagement
    The platform encourages community interaction through comments, user-submitted challenges, and solutions, fostering a collaborative learning environment.
  • Multiple Languages
    Codewars supports a variety of programming languages, allowing users to practice and improve skills in their language of choice.
  • Gamification
    The use of a ranking system, badges, and honor points adds a gamified layer to the learning process, making it more engaging and motivating.
  • Detailed Solutions
    After solving a challenge, users can view multiple solutions from others, offering a range of approaches and insights into problem-solving.

Possible disadvantages of Codewars

  • Steep Learning Curve
    Beginners might find some challenges too difficult at first, which can be discouraging without proper guidance or learning resources.
  • Quality Variability
    The quality of user-submitted challenges can be inconsistent, meaning not all katas are equally useful or well-designed.
  • Limited In-Depth Learning
    While great for practice, Codewars does not provide comprehensive tutorials or in-depth explanations, which are often needed for mastering complex concepts.
  • Time Consumption
    The addictive nature of the platform can lead to spending excessive time on solving challenges, potentially detracting from other learning activities.

RegExr videos

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Codewars videos

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Codewars Review & Tips

More videos:

  • Review - Practising Programming | Codewars Intro

Category Popularity

0-100% (relative to RegExr and Codewars)

RegExr

Codewars

Programming Tools
100 100%
Programming Tools
0% 0
Online Learning
0 0%
Online Learning
100% 100
Regular Expressions
100 100%
Regular Expressions
0% 0
Online Education
0 0%
Online Education
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare RegExr and Codewars

RegExr Reviews

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Codewars Reviews

LeetCode Alternatives: Top platforms for coding practice
Edabit offers a learning experience similar to learning a new language, focusing on smaller and more frequent exercises that build proficiency over time. Like Codewars, Edabit provides many challenges that increase in difficulty as you progress. It's designed to transition smoothly from easy to more challenging problems.
Source: formation.dev
Discover the Top Leetcode Alternatives
In conclusion, while Leetcode remains a valuable resource for coders, the platforms listed above offer varied approaches to learning and improving coding skills. Whether you're drawn to the gamified learning environment of CodenQuest or the community-driven challenges of Codewars and Exercism, there's a Leetcode alternative that suits your learning style and objectives....
Source: codenquest.com
15 Best LeetCode Alternatives 2023
This LeetCode alternative has excellent features for anyone looking to sharpen their coding skills. Codewars uses kata, which are small coding exercises that are community developed to help you master your language of choice. Alternatively, Codewars has over 55+ programming languages that you can learn.
Source: rigorousthemes.com
The 10 Most Popular Coding Challenge Websites [Updated for 2021]
Codewars provides a large collection of coding challenges submitted and edited by their own community. You can solve the challenges directly online in their editor in one of several languages. You can view a discussion for each challenges as well as user solutions.
Source: www.freecodecamp.org
Top 10 Online Challenge Websites in Python
You will see a modular progression when you start the tutorial on Python. Codewars makes solving these challenges that much more fun. It feeds the competition with the score and ranking system. They present challenges created by qualified questions in different languages.
Source: medium.datadriveninvestor.com

Social recommendations and mentions

Based on our record, RegExr should be more popular than Codewars. It has been mentiond 367 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.

RegExr mentions (367)

  • The importance of the environment in Regex pattern matching
    However - here it becomes weird - when testing the original regex rule (the first one, without the \u00A0 part) on the same string in an interactive visualiser (https://regexr.com/ for instance), there is a match:. - Source: dev.to / 7 months ago
  • Ask HN: How did you learn Regex?
    Learned regex in the 90's from the Perl documentation, or possibly one of the oreilly perl references. That was a time where printed language references were more convenient than searching the internet. Perl still includes a shell component for accessing it's documentation, that was invaluable in those ancient times. Perl's regex documentation is rather fantastic. `perldoc perlre` from your terminal. Or... - Source: Hacker News / 10 months ago
  • Ask HN: How did you learn Regex?
    I read a lot on https://www.regular-expressions.info and experimented on https://rubular.com since I was also learning Ruby at the time. https://regexr.com is another good tool that breaks down your regex and matches. One of the things I remember being difficult at the beginning was the subtle differences between implementations, like `^` meaning "beginning of line" in Ruby (and others) but meaning "beginning of... - Source: Hacker News / 10 months ago
  • Ask HN: How did you learn Regex?
    Mostly building things that needed complex RegEx, and debugging my regular expressions with https://regexr.com/. - Source: Hacker News / 10 months ago
  • Form Validation In TypeScipt Projects Using Zod and React Hook Form
    For username: You are using the min() function to make sure the characters are not below three and, then the max() function checks that the characters are not beyond twenty-five. You also make use of Regex to make sure the username must contain only letters, numbers, and underscore. - Source: dev.to / 10 months ago
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Codewars mentions (160)

  • Of recursion and backtracking
    Recently, I was working on a coding kata on codewars.com. Early on, I started thinking that a potential solution might utilize recursion, a concept that involves a function calling itself. However, I quickly realized that my grasp of recursion was not as solid as it needed to be for this task. In this post, I will share the insights gained from deepening my understanding of recursion while working through the kata. - Source: dev.to / over 1 year ago
  • 4th year, about to fail an entire semester's worth of classes.
    Get more involved. Look into internships and junior SWE positions to get a sample of what you'd be applying for once you graduate. Solve coding challenges, start working on a portfolio of your personal works. I recommend codewars.com for coding challenges, it's fun. Source: over 1 year ago
  • Beginner with C++ looking for direction
    I'd recommend to play around with some basic coding challenges on leetcode.com or codewars.com. If the course prepared you well you won't find this useful, but playing around with them will make sure that you are comfortable with basics such as loops, if statements etc. Source: almost 2 years ago
  • Can you guys recommend an efficient way to learn in advance IT para sa mga walang alam?
    I would advise for you to start with Python, it's a beginner-friendly programming language and it'll help with wrapping your mind around things. Play around with it, perhaps do some katas on CodeWars and you'll be set. Source: almost 2 years ago
  • How do I develop programming logic?
    There is a website called codewars.com where you can select problems of varying difficulty for the language you need. It is very helpful for learning. Source: almost 2 years ago
View more

What are some alternatives?

When comparing RegExr and Codewars, you can also consider the following products

regular expressions 101 - Extensive regex tester and debugger with highlighting for PHP, PCRE, Python and JavaScript.

Codecademy - Learn the technical skills you need for the job you want. As leaders in online education and learning to code, we’ve taught over 45 million people using a tested curriculum and an interactive learning environment.

rubular - A ruby based regular expression editor

LeetCode - Practice and level up your development skills and prepare for technical interviews.

Expresso - The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.

Exercism - Download and solve practice problems in over 30 different languages.

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