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Knowing intermediate JavaScript concepts like the call stack, context, scope, the prototype chain, higher order functions, async programming, and the event loop is invaluable and will help with learning frameworks. The fundamentals won't change even if the ecosystem does.
Going to thread resources for learning all of these here.
Call stack:
The JS Call Stack Explained In 9 Minutes
by Colt Steele: https://www.youtube.com/watch?v=W8AeMrVtFLY …
@MozDevNet guide - https://developer.mozilla.org/en-US/docs/Glossary/Call_stack …
Understanding the JavaScript call stack
by @charliecodeshttps://medium.freecodecamp.org/understanding-the-javascript-call-stack-861e41ae61d4 …
Scope + Context:
Scope & Closures in @YDKJS by @getify https://github.com/getify/You-Dont-Know-JS/tree/master/scope%20%26%20closures …
this by @MozDevNet - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/this …
Understanding Scope and Context in JavaScript by @ryanmmorrhttp://ryanmorr.com/understanding-scope-and-context-in-javascript/ …
Prototypal Inheritance:
Inheritance and the prototype chain by @MozDevNet https://developer.mozilla.org/en-US/docs/Web/JavaScript/Inheritance_and_the_prototype_chain …
Explaining JavaScript’s Prototype Chain Like You're Five by Codesmith https://dev.to/codesmith_staff/explain-javascripts-prototype-chain-like-im-five-51p …
Master JavaScript Prototypes & Inheritance by Arnav Aggarwalhttps://codeburst.io/master-javascript-prototypes-inheritance-d0a9a5a75c4e …
Higher order functions:
Higher Order Functions: Using Filter, Map and Reduce for More Maintainable Code by @guidsen https://medium.freecodecamp.org/higher-order-functions-in-javascript-d9101f9cf528 …
Higher-order functions by @mpjme https://www.youtube.com/watch?v=BMUiFMZr7vk …
Map, Filter, Reduce vs For Loops (syntax) by @joelnethttps://dev.to/joelnet/map-filter-reduce-vs-for-loops-syntax-2k5l …
Asynchronous programming:
Async & performance in @YDKJS - https://github.com/getify/You-Dont-Know-JS/tree/master/async%20%26%20performance …
JAVASCRIPT ASYNCHRONOUS PROGRAMMING AND CALLBACKS by @flaviocopes - https://flaviocopes.com/javascript-callbacks/ …
Asynchronous Programming in Eloquent Javascript - https://eloquentjavascript.net/11_async.html
Event loop:
Philip Roberts: What the heck is the event loop anyway? - https://www.youtube.com/watch?v=8aGhZQkoFbQ&t=737s …
Concurrency model and Event Loop - @MozDevNet https://developer.mozilla.org/en-US/docs/Web/JavaScript/EventLoop …
Understanding JS: The Event Loop -Alexander Kondovhttps://hackernoon.com/understanding-js-the-event-loop-959beae3ac40 …
Thread may be helpful for #CodeNewbie's and #100DaysOfCode people!
Are these specific to javascript or node.js?
They apply to Node too -- though I would say they are more important in the browser.
node is not in the browser you say ? (I know nothing about js tbh)
Yes! Node.js is server-side for web apps -- takes the place of something like Python or Java in a web app.
What would you consider high concepts of JavaScript then? I'm curious on your opinion 
Good question! Probably frameworks/some libraries like d3/design patterns. Some of these may fit in that box instead. Kind of arbitrary I guess!
@tylermcginnis has an amazing course on these. One of the hardest ones for me was the async stuff and he really goes through the evolution of callbacks to asyn/await. Invaluable indeed Ali.
That's awesome! Think that would be super helpful for a lot of people!
Always been a big proponent of this. Understanding how it works makes it easier to understand anything built on top of it like frameworks
Totally agree!
Eek, I know some of these words 
Ah, mostly a "don't feel the need to learn all the frameworks out there, learn the fundamentals instead" kinda tweet. JS has a lot of quirks and is wayyy different than Python
For sure! I'm doing front-end on a daily basis too, though, so I have some gaps 
async is still one of those things I understand the value of and can even manage to program once in a while, but still not something I have a great mental model for.
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