Learning materials come in the form of video lectures, online textbooks, assignments, quizzes and self-assessments. If you like to learn by reading, MDN is a great place to learn coding and web development. If you want to learn how to code a website, check out this Introduction to Web Development course from UC Davis. Once you've learned the basics of the command line, you can become more efficient with this free tutorial for developers.
If you're already a developer, Machine Learning Mastery is a resource that can help you start learning what you need to know about machine learning. This post can guide anyone who wants to learn the subject as if they were at a top university, but for free. In addition to videos, courses often include readings, exercises and forums to make the learning experience more interactive. Sololearn is a social and interactive platform where you can learn any programming language and many of the most popular frameworks and libraries.
You can also download code cheatsheets, checklists and worksheets to shorten the data science learning curve. Once you get comfortable with one programming language, you can learn the next one much faster, like learning a new musical instrument or a foreign language. Below you will find 100 online programming classes for every learning style, level of commitment and career goal.