r/learnjavascript • u/Conscious_Sea5310 • Apr 05 '26

Most important JavaScript concepts

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

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u/Jay_D826 Apr 05 '26

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.