I started with freeCodeCamp and highly recommend it for your first month or so. Depending on how long it’s been since you learned HTML/CSS I’d start with their course on that (would be a quick process for someone with some background in it already and if anything’s changed since you learned originally like updates in the languages you’ll find out there), but you can also skip straight to the JavaScript section if you’d like. After that there’s The Odin Project which is more in depth albeit not as easy to follow. They’ll actually show you how to setup your text editor and even how to use Linux on a VM as it’s a better environment for programming, or at least it seems most people think so. There’s also a few YouTube channels I really enjoy. Bro Code freeCodeCamp on YouTube WebDev Simplified These are 3 great channels for beginners and, if you want to, you could set up a new YouTube account and by running through a bunch of the videos on these channels it will help setup that new channels algorithm to help you find even more good content on learning. Best of luck. I’m still somewhat new myself, and if you ever need anything shoot me a DM. If I can help out I will. More on reddit.com

Best way is to have an idea of a project and just build it. More on reddit.com

Here are some excellent beginner resources for learning JavaScript

• Mozilla Developer Network - the leading resource on JS

• FreeCodeCamp - free course

• CodeAcademy - intro to javascript - free course

• Odin Project - full stack javascript - free course

• Eloquent Javascript - book

• javascript.info - reference resource

• Traversy Crash Course in Javascript - video series

Software

• Node.js - the most popular javascript runtime

• VS Code - the most popular IDE for JavaScript

Code Sandboxes

• JS Fiddle

• JS Bin

• CodeSandbox

• CodePen

• Repl.it - node

Other handy sites

• Regexr

• Github

• Gist

• Github Lab

• Learn Git Branching

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This is a difficult question to give any kind of definitive answer to, but I'd say if you have a good grasp of everything through the Basic Algorithm Scripting section of FreeCodeCamp's Javascript section, you know the basics: https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/ That doesn't mean you should know how to do all that stuff without having to look anything up, but you should know what someone is talking about if they were to refer to those things, and you should be able to implement them relatively easily (except the Regex stuff...everyone has trouble with Regex). In terms of data structures and algos, you should probably be able to solve the problems in the Basic Algo. Scripting section. A word of advice: don't use Eloquent Javascript as a gauge of your JS knowledge / progress. I've been learning JS for over a year now and started that book over the summer. I am only at chapter 11, and realized early on that it's not a beginner book at all. There are patterns he uses and things he covers that you'll rarely see or use anywhere else, and there are places where he heaps complexity on top of already complex topics. I have learned a good amount from that book, but it's far from perfect, so don't let it make you feel like you're not good enough if you finish a chapter and are left scratching your head. More on reddit.com