regex101 : Free PCRE-based regular expression debugger with real time explanation, error detection and highlighting.
JavascriptOO : Every javascript project you should be looking into.
With examples, categories, install commands, CDN links, project and author stats, and more.
Gophercises : FREE coding exercises for budding gophers
Git Reference : This is the Git reference site. It is meant to be a quick reference for learning and remembering the most important and commonly used Git commands.
