What does TypeScript’s ‘using await’ (async explicit resource management) enable differently from regular ‘using’?

Question

TypeScript Professional — Hard

What does TypeScript’s ‘using await’ (async explicit resource management) enable differently from regular ‘using’?

Accepted Answer

'await using' in TypeScript enables async teardown logic by calling Symbol.asyncDispose during cleanup, while regular 'using' only calls synchronous Symbol.dispose. This distinction allows for handling asynchronous resource cleanup operations.