What does `using` keyword (TypeScript 5.2, TC39 Explicit Resource Management) do?

Question

TypeScript Professional — Hard

What does `using` keyword (TypeScript 5.2, TC39 Explicit Resource Management) do?

Accepted Answer

The `using` keyword in TypeScript 5.2 declares a resource that is automatically disposed via `Symbol.dispose` when the block exits. This feature helps manage resources efficiently and prevents memory leaks.