Basic usages and examples of C # Task.fromresult

Basic usages and examples of C # Task.fromresult

This method is useful if you perform an asynchronous operation that returns a Task object, and the result of that task O Bject is already computed

There is common use cases I ' ve found:

1. When you ' re implementing a interface that allows asynchronous callers, but your implementation is synchronous.
2. When your ' re stubbing/mocking asynchronous code for testing

The above is generally used for unit testing;

Then there are also useful when we read the cache; Microsoft Official blog instance;

Https://docs.microsoft.com/en-us/dotnet/standard/parallel-programming/how-to-create-pre-computed-tasks

The thought above:

This method is useful if you perform an asynchronous operation that returns a Task object, and the result of that task O Bject is already computed.

has been calculated, or has been cached, the basic desired value;

Basic usages and examples of C # Task.fromresult