What is the 'Disposable' pattern and the 'using' keyword in TS 5.2?

TypeScript 5.2 introduced the using and await using keywords to support Explicit Resource Management. They automatically clean up resources when execution leaves a scope by calling Symbol.dispose or Symbol.asyncDispose.

TypeScript 5.2 introduced support for the JavaScript proposal called Explicit Resource Management.

The goal is to automatically clean up resources when they are no longer needed.

Common resources:

Instead of manually calling cleanup methods in finally blocks, you can use using.

---

Before TS 5.2

```ts class DatabaseConnection { connect() { console.log("Connected"); }

close() { console.log("Closed"); } }

const db = new DatabaseConnection();

try { db.connect();…