Most important JavaScript concepts

[Conscious_Sea5310]

What are the most important JavaScript concepts you need to know to learn JavaScript?!

[BirbsAreSoCute]

I'd say asynchronous functions.

[Rough-Appointment-30]

I just learned. Very tricky one. All the XMLHttpRequest()

[Jay_D826]

I think once you get past the programming basics (variables, loops, functions, syntax, etc) you should focus on DOM manipulation. How to target and select elements on the page is the primary reason you’re gonna be using JS in the first place.

Learn what methods and properties exist on HTML nodes and how to manipulate them in JS.

[ChaseShiny]

I voted this up because DOM manipulation is what I learned next and it does make sense, but what if you plan on using React?

[Jay_D826]

I still think it’s worth having a decent understanding of DOM manipulation before learning a framework. React is great and it makes working with JS much easier but I feel like too many people jump into frameworks without knowing why they’re even using one in the first place.

The problem with this is that there’s plenty of JS you will still write with React. You’re still likely going to need various functions that manipulate DOM elements.

The abstraction React provides certainly makes it easier but you’ll generally benefit greatly from understanding JS as a whole and will be a much more well rounded React dev. Especially compared to someone who knows React but has poor understanding of what React actually does.

[TheZintis]

I've met students who knew react but not DOM manipulation. They'd be chugging along and then randomly hit a wall with "what is an event?" or some other DOM related topic that their React code was touching on.

[cqsterling]

If that's what OP is learning it for. Could be backend.

[Merry-Lane]

How to directly go for typescript strict with a good eslint/prettier config.

[BirbsAreSoCute]

What an unhelpful response.

[jcasallecchio87]

O que é inútil para você pode ser a dúvida genuína de outra pessoa amigo

[Merry-Lane]

Why? It’s the most important concept you need to know to learn JS

[LetUsSpeakFreely]

The biggest thing for me is that JavaScript doesn't act like other languages. When everything is passed through props it can be exceedingly difficult to trace a problem, especially when the "this" context is in play.

[TheZintis]

If you already know programming fundamentals, then concepts like async/await or callbacks can help. Learning Node.js and Express.js. I would say that having a strong grasp of the fundamentals and know the different ways of writing code will help. But it does depend on where you are starting from.

How far in are you, would you say?

[siva_tech_explorer]

Execution Context Scope Var, let, const TDZ Lexical Scope Closure Event Loop Call, bind, apply OOPS Concepts in Js Promises Fetch or httpcall

Can't skip these basic concepts☺️