ConfigureAwait behavior in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to await the task without capturing the current synchronization context.

C Sharp (C#)

await someTask.[1](false);

Drag options to blanks, or click blank then click option'

AWait

BConfigureAwait

CGetAwaiter

DContinueWith

Attempts:

3 left

💡 Hint

Common Mistakes

Using ContinueWith instead of ConfigureAwait.

Forgetting to call ConfigureAwait at all.

Using GetAwaiter which does not take parameters.

The ConfigureAwait(false) method tells the awaiter not to capture the current synchronization context.

2fill in blank

medium

Complete the code to resume on the original synchronization context after awaiting.

C Sharp (C#)

await someTask.[1](true);

Drag options to blanks, or click blank then click option'

AGetAwaiter

BContinueWith

CConfigureAwait

DWait

Attempts:

3 left

💡 Hint

Common Mistakes

Passing false when the goal is to resume on the original context.

Using ContinueWith which does not guarantee context capture.

Using ConfigureAwait(true) ensures the continuation runs on the original context, which is the default behavior.

3fill in blank

hard

Complete the code to await the task without capturing the current synchronization context.

C Sharp (C#)

var result = await someTask.[1];

Drag options to blanks, or click blank then click option'

AConfigureAwait

BConfigureAwait(true)

CGetAwaiter().GetResult()

DConfigureAwait(false)

Attempts:

3 left

💡 Hint

Common Mistakes

Using just ConfigureAwait without the parameter.

Using ConfigureAwait(true) which captures the context.

Using blocking calls like GetAwaiter().GetResult() which can deadlock.

ConfigureAwait(false) avoids capturing the synchronization context. This full expression is needed here.

4fill in blank

hard

Fill both blanks to create a task that does not capture the synchronization context and returns a string result.

C Sharp (C#)

async Task<string> GetDataAsync() {
    var data = await FetchDataAsync().[1]([2]);
    return data;
}

Drag options to blanks, or click blank then click option'

AConfigureAwait

Bfalse

Ctrue

DGetAwaiter

Attempts:

3 left

💡 Hint

Common Mistakes

Passing true instead of false.

Using GetAwaiter which does not take parameters.

Using ConfigureAwait(false) avoids capturing the synchronization context, which can improve performance in some scenarios.

5fill in blank

hard

Fill both blanks to create a dictionary comprehension that stores task results without capturing the synchronization context.

C Sharp (C#)

var results = new Dictionary<int, string>();
foreach (var id in ids) {
    results[id] = await GetDataAsync(id).[1]([2]);
}

Drag options to blanks, or click blank then click option'

AConfigureAwait

Bfalse

DConfigureAwait(false)

Attempts:

3 left

💡 Hint

Common Mistakes

Putting ConfigureAwait(false) as one option (not allowed here).

Adding extra characters in the third blank.

The correct syntax is await GetDataAsync(id).ConfigureAwait(false); The third blank is empty because the semicolon is already in the code.