What is the Difference between Async and Await

In programming, "async" and "await" are keywords typically used in asynchronous programming to simplify and manage the execution of concurrent tasks.

Async:

A method or function that can carry out asynchronous activities is defined by the "async" keyword. When a method is labeled "async," it denotes that it can contain one or more "await" expressions and that execution may be delayed while waiting for the conclusion of certain asynchronous operations. After the anticipated operation has been completed, the procedure can continue to run.

Await:

When the "await" keyword is used in an async method, it tells the program that execution should stop there and wait until the task or operation is finished. Only inside async methods can the "await" keyword be used, and it is normally preceded by an expression denoting a task, a Task object, or any other type that offers an accessible pattern.
Here is a basic example to show how "async" and "await" are used in C#:

public async Task<string> GetDataAsync()
{
    // Perform asynchronous operations
    string result = await SomeAsyncOperation();
    // Execution will pause here until SomeAsyncOperation is completed
    // Continue with other operations
    return result;
}

The 'GetDataAsync' method in the previous example is labeled as 'async,' indicating that it performs asynchronous activities. The 'SomeAsyncOperation' method, which returns a 'Taskstring>,' uses the 'await' keyword to wait for the completion of the operation. The 'await' instruction stops the execution of 'GetDataAsync' until the task is finished, allowing the program to run additional tasks concurrently. The procedure continues execution and returns the outcome when the anticipated operation is complete.

“async” and "await" are effective programming constructs for constructing asynchronous code that can increase the responsiveness and effectiveness of systems by enabling them to carry out numerous activities at once without blocking the execution.