CODEWITHSUNDEEP
c#async-await
ca9163d9
ca9163d9

Reputation: 29159

TaskTupleAwaiter vs Task.WhenAll?

TaskTupleAwaiter https://github.com/buvinghausen/TaskTupleAwaiter allows us to do

// For example
// Task<int> t1() { return Task.FromResult(1); }
// Task<string> t2() { return Task.FromResult("a"); }
var (r1, r2) = await (t1(), t2());

How does it compare to the following code? (Besides more concise code)

var t1task = t1();
var t2task = t2();
// var r1 = await t1task; // Edited one is actually I wanted to ask
// var r2 = await t2task;
await Task.WhenAll(t1task, t2task);  
var r1 = t1task.Result;
var r2 = t2task.Result;

The project hasn't had any update for a while. I'm wondering if I need to remove it from our repo.

Upvotes: 1

Views: 205

Answers (1)

Guru Stron
Guru Stron

Reputation: 141730

Based on the source code await (t1(), t2()) should be the same as:

var t1task = t1();
var t2task = t2();
await Task.WhenAll(t1task, t2task);  
var r1 = t1task.Result;
var r2 = t2task.Result;

Which should be preferable compared to the original code (now commented out) in the question.

The project hasn't had any update for a while.

The source code was updated only 5 month ago, project targets latest released (at the moment of writing) version of .NET - .NET 6. I would say that for smaller projects which does not have a lot of features such maintainability schedule should be just fine, so personally I see no major reason to switch.

Upvotes: 2

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