Async means that this function is asynchronous and you might need to wait a bit to get its result. Await literally means – wait here until this function is finished and you will get its return value. Future is a type that ‘comes from the future’ and returns value from your asynchronous function .
Read moreWhat does async do?
The word “async” before a function means one simple thing: a function always returns a promise. Other values are wrapped in a resolved promise automatically. So, async ensures that the function returns a promise, and wraps non-promises in it .
Read moreWhy async and await is used?
await can be used on its own with JavaScript modules. Note: The purpose of async / await is to simplify the syntax necessary to consume promise-based APIs . The behavior of async / await is similar to combining generators and promises. Async functions always return a promise.
Read moreWhat is Future async await?
When you await an asynchronous function, the execution of the code within the caller suspends while the async operation is executed. When the operation is completed, the value of what was awaited is contained within a Future object .
Read moreWhat is Future async in Flutter?
When an async function is called, a Future is immediately returned and the body of the function is executed later . As the body of the async function is executed, the Future returned by the function call will be completed along with its result. In the above example, calling demo() results in the Future.
Read moreWhat is difference between async and async * In Flutter?
The difference between both is that async* will always return a Stream and offer some syntax sugar to emit a value through the yield keyword . async gives you a Future and async* gives you a Stream. When users marks a function as async or async* allows it to use async/await keyword to use a Future.
Read moreWhat is Future in Flutter Dart?
A Future is defined exactly like a function in Dart , but instead of Void you use Future. If you want to return a value from Future, then you pass it a Type.30 Eyl 2020
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