async/await yana ba da damar asynchronous, non-blocking code wanda yake karantawa kamar synchronous code. Yana da mahimmanci don I/O-bound aiki (database, network, file access) — yana bani ga programa ta aiwata sauran aiki (ko bukatun) yayin jira ga saurin ayyuka, yana inganta responsiveness da scalability.
{
client = HttpClient();
result = client.GetStringAsync(url);
result;
}
data = GetDataAsync();
Maimakon async yana komawa Task (ko Task<T>), kuma await yana tsayar da hanyar sai jiya matakin da ake jira ya gama — ba tare da toshe thread ba. Yayin jira, thread yana kasua da sauran aiki (jimlantawa sauran bukatun, sanya UI mai karfi). Code yana karantawa bisa-bisa kamar synchronous code duk da kasua asynchronous.
❌ synchronous I/O — the thread BLOCKS, doing nothing while waiting (wastes resources)
✅ async I/O — the thread is RELEASED during the wait, serving other work
→ A web server using async can handle far more concurrent requests with fewer threads.
// ❌ sequential — total time = sum of both
var a = await GetAAsync();
var b = await GetBAsync();
// ✅ concurrent — start both, then await both (total = max, not sum)
Task<string> taskA = GetAAsync();
Task<string> taskB = GetBAsync();
await Task.WhenAll(taskA, taskB); // run independent operations in parallel
Ku amfani da Task.WhenAll don jira da yawa masu zaman kansu ayyukan daidai-daidai — babbar sauri yayin da ba su dogara juna ba.
✓ Use async "all the way" — async methods called by async methods
✓ Name async methods with the Async suffix (convention)
✗ AVOID async void (except event handlers) — exceptions are unobservable, can crash
✗ AVOID blocking on async (.Result / .Wait()) — can DEADLOCK; await instead
✓ async is for I/O-bound work; for CPU-bound parallelism use Task.Run / Parallel
async/await muhimmin, da yawa amfani yana feɗi a C# na zamani — dole ne don gina responsive, scalable applications, don haka fahimta yana mahimmanci.
Ainihin karfin yana ba da damar non-blocking asynchronous I/O: don I/O-bound ayyuka (database queries, HTTP calls, file access), async/await yana bani ga thread ta kasua yayin jira da aiwatar sauran aiki, maimakon toshe a tsaye — wanda yana inganta scalability sosai (web server na iya aiwatar da yawa bukatun daidai tare da tsokoki kaɗan) da responsiveness (UIs suna tsaye yayin saurin ayyuka).
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