Marksheet.io, my free HTML and CSS course landed me a job back in 2015. It turned out to be my last office job before turning fully freelance. https://marksheet.io/. - Source: Hacker News / 7 months ago

This is a gentle but fairly thorough introduction: https://marksheet.io/. Source: over 3 years ago

OverAPI: OverAPI is a comprehensive hub that collects and curates cheat sheets for developers. It goes beyond just API-related content and serves as a centralized repository for cheat sheets covering a wide array of programming languages. From popular choices like Python, JavaScript, and Ruby to more niche languages, OverAPI has got you covered. - Source: dev.to / 3 months ago

Content: OverAPI.com is a repository that compiles cheat sheets for various programming languages and technologies, including Python, jQuery, NodeJS, PHP, Java, and more. Benefits: It provides quick references and revision aids for a wide range of programming topics, making it an invaluable resource for programmers. Link: https://overapi.com/. - Source: dev.to / 3 months ago

A collection of cheat sheets for various programming languages and frameworks. - Source: dev.to / 6 months ago

Collecting all the cheat sheets : cheat sheets for lots of programming languages. - Source: dev.to / over 1 year ago

I did Mosh Hamedani's C# course on Udemy all three parts, and then Angela Yu's webdev course, also on Udemy. I then made a React project that I designed myself (it visualizes scales and arpeggios on the guitar fretboard). I also watched a ton of Fireship/WebDev Simplified/Traversy Media videos on YouTube, studied CheatSheets like the ones here, did a few leetcode problems here and there and just basically immersed... Source: almost 2 years ago