Expressions in JSX

One of JSX's most powerful features is the ability to embed JavaScript expressions directly in your markup using curly braces {}.

Embedding Expressions

Any valid JavaScript expression can go inside curly braces in JSX:

What Can Go in Curly Braces?

Template Strings in JSX

You can use template literals for complex string formatting:

Exercise: Dynamic Content

Exercise: Conditional Display

Exercise: Computed Values

Key Takeaways

1. Curly braces for expressions - Use {} to embed JavaScript in JSX
2. Expressions only - No statements (if/for), use ternary and map instead
3. Any valid expression - Variables, math, methods, function calls all work
4. Template literals - Great for complex string formatting
5. Dynamic content - This is how React makes UIs interactive