Comments (2)
You can use https://github.com/tc39/proposal-explicit-resource-management to achieve this, we don't really need to add APIs for it in Jest itself. Both Babel and TypeScript can transform the syntax.
from jest.
TIL, thanks!
For benefit of future readers, with Explicit Resource Management the example above would be:
- if the resource has
[Symbol.dispose]
(i.e. conforms toDisposable
):using res1 = createResource(); using res2 = createResource();
- if it doesn't:
using stack = new DisposableStack(); const res1 = createResource(); stack.defer(() => res1.close()); const res2 = createResource(); stack.defer(() => res2.close());
from jest.
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from jest.