Creates a future containing the result of calling computation
asynchronously with scheduleMicrotask.
If executing computation
throws, the returned future is completed with the thrown error.
If calling computation
returns a Future, completion of the created future will wait until the returned future completes, and will then complete with the same result.
If calling computation
returns a non-future value, the returned future is completed with that value.
factory Future.microtask(FutureOr<T> computation()) { _Future<T> result = new _Future<T>(); scheduleMicrotask(() { try { result._complete(computation()); } catch (e, s) { _completeWithErrorCallback(result, e, s); } }); return result; }
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https://api.dart.dev/stable/2.5.0/dart-async/Future/Future.microtask.html