30 days of JavaScript programming challenge is a step-by-step guide to learn JavaScript programming language in 30 days. This challenge may take more than 100 days, please just follow your own pace. These videos may help too: https://www.youtube.com/channel/UC7PNRuno1rzYPb1xLa4yktw

30 Days of React challenge is a step by step guide to learn React in 30 days. These videos may help too: https://www.youtube.com/channel/UC7PNRuno1rzYPb1xLa4yktw

A public list of open-source challenges from companies around the world

Fork this template for the 100 days journal - to keep yourself accountable (multiple languages available)

A series of ReactJS coding challenges with a variety of difficulties.

A collection of popular Data Science Challenges/Competitions || Countdown timers to keep track of the entry deadlines.

My solution to the book A Collection of Data Science Take-Home Challenges

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Practice your skills with these ideas.

CTF Training 经典赛题复现环境

Can you create something cool without modern tools?

Flutter UI challenge (with Box2D physic)- Smart washing machine app

Challenge yourself learning and understanding the most obscure and tricky parts of Javascript. http://tcorral.github.io/javascript-challenges-book/

DataScience projects for learning : Kaggle challenges, Object Recognition, Parsing, etc.

Aqui você encontrará uma coleção de desafios projetados para aprimorar suas habilidades de programação com foco em backend.

PyBites Code Challenges

Let's build something productive in less than 100 Lines of Code.

The solutions of all SQL hackerrank challenges using MySQL environment

Repository responsible for 25 days of Serverless challenges

Solutions for the collection of TypeScript type challenges with explanations