React — Prerequisites
What You Need Before Starting
1. Solid JavaScript (required)
React is a JavaScript library — every component you'll write is JavaScript (or JSX, which compiles to JavaScript function calls) underneath. Specifically, this course assumes real comfort with:
.map, .filter, .find) — .map in particular shows up constantly for rendering lists of componentsconst { name, age } = user and const [first, second] = array — props and hooks are both consumed with this syntax throughout every example on this platformasync/await — data fetching inside useEffect is written this way, not with raw .then() chainsIf any of this feels shaky, this platform's own JavaScript technology (in this same Frontend/Web Development domain) is the right stop first — React's Fundamentals tab starts directly with JSX and components, assuming that foundation is already solid rather than re-teaching it.
2. Basic HTML/CSS (recommended, not required)
You don't need deep CSS expertise, but knowing what a Can you write, without looking anything up, a function that takes an array of objects like , and a are — and roughly how class-based styling works — means you can actually build something that looks like a real UI while learning React's mechanics, rather than fighting two unfamiliar things simultaneously.3. What you do *not* need yet
Quick self-check
[{ name: "Alice", age: 30 }, { name: "Bob", age: 25 }] and returns just the names, using .map and destructuring? If yes, you're ready to start at Fundamentals. If that feels unclear, spend time with this platform's JavaScript technology first — React's material builds directly on exactly that kind of comfort rather than re-covering it.