Codechef
LeetCode
HackerRank
Coderbyte
AlgoExpert.io
Codewars
CodeForces
Interview Cake
Codecademy
Udemy
Coursera
Free Code Camp
Khan Academy
edX
Treehouse
Pluralsight
CodeChef is a not-for-profit educational initiative started by Directi more than a decade ago. We started with a dream of seeing an Indian team winning a gold medal at the ACM ICPC World Finals. In its quest for the same, CodeChef has built a self-driven community of the world's best programmers. Today more than 1.3 million competitive programmers from 180+ countries learn from CodeChef. CodeChef has been hosting monthly programming contests regularly for 10 years now. Its platform has assessed 92 million+ code submissions to date, and over 30000 organizations are being impacted by CodeCheffers worldwide. It also organizes SnackDown - one of the world's largest global programming competition whose last edition drew participation from 140+ countries. Since 2017, CodeChef has started providing India's only industry-ready certification in Data Structures and Algorithms, and 1800+ programmers have been certified under the same.
Codechef CodecademyBased on our record, Codecademy seems to be a lot more popular than Codechef. While we know about 112 links to Codecademy, we've tracked only 7 mentions of Codechef. 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.
Have you heard of codeforces.com, atcoder.jp, codechef.com, etc? Source: 5 months ago
Leetcode is good to learn basic algorithms because problem statements are usually straightforward. Competitive programming has much wider range of problems. Most popular sites for cp are codeforces.com , atcoder.jp, codechef.com . Source: 5 months ago
Learn Java with hands-on experience. I personally used codingbat.com a lot, but I've heard good things about codechef.com, which appears to even have a competitive option. Source: about 1 year ago
For practicing algorithms, use any of the freely available websites like https://hackerrank.com https://codechef.com https://projecteuler.net A structured set of practice problems are available at https://www.interviewbit.com/courses/programming/ Avoid https://geeksforgeeks.org because it has a ton of material but very poor quality control. Source: almost 2 years ago
These all have sample problems to solve Hackerrank.com edabit.com codewars.com codechef.com and there are tons more. Best of luck to you. I am at about the same level myself. I really like these sites. Source: about 2 years ago
Codecademy is a freemium platform with high-quality content. Their courses range from web development to data science, and are interactive and text-based. - Source: dev.to / 4 days ago
If you really have decided to become the next Guru on Scratch then you should learn at least one real programming language like JavaScript. I found this JavaScript course very useful: https://learnjavascript.online/. You can also learn Java and Python on codecademy.com. - Source: dev.to / 9 months ago
Codecademy.com makes use of a similar approach to the one you mentioned in order to teach JavaScript (and HTML and CSS), giving immediate feedback for the code you write on your browser (except that it uses the browser, as mentioned, instead of an IDE). Source: 10 months ago
Codecademy offers interactive coding courses for various programming languages, including Python and JavaScript. It provides a hands-on learning experience and offers a free trial to get started. codecademy.com. Source: 10 months ago
My recommendation is to sign up for codecademy.com and create an account to learn SQL over there. Also use sqlbolt.com because both of these websites provide detailed interactive SQL tutorials that should help you write it. You write the SQL as you learn it which is a better way of learning it in my opinion. Source: 10 months ago
LeetCode - Practice and level up your development skills and prepare for technical interviews.
Udemy - Online Courses - Learn Anything, On Your Schedule
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Coursera - Build skills with courses, certificates, and degrees online from world-class universities and companies
Coderbyte - Coderbyte is a place built for anyone to practice and perfect their programming skills.
Free Code Camp - Learn to code by helping nonprofits.