There are two ways of getting a value from a Future .
Read moreHow do you call Future function in Flutter?
To perform such operations in Flutter/Dart, we usually use a Future class and the keywords async and await. A Future class allows you to run work asynchronously to free up any other threads that should not be blocked. Like the UI thread.30 Eyl 2020
Read moreWhat is toList () in Flutter?
toList method Null safety Future<List<T>> toList() Collects all elements of this stream in a List . Creates a List<T> and adds all elements of this stream to the list in the order they arrive. When this stream ends, the returned future is completed with that list.
Read moreHow do you return Future value in Flutter?
There are two ways of getting a value from a Future .
Read moreWhat is Future data type in Dart?
Future<T> means that the result of the asynchronous operation will be of type T . For example, if a function returns Future<String> , this means that in the future, it will provide a string to you. For the sake of practicing, we can use one of the Future constructors to create our own Future object.
Read moreWhat is Future void in Flutter?
If a future doesn’t produce a usable value , then the future’s type is Future<void> . A future can be in one of two states: uncompleted or completed. When you call a function that returns a future, the function queues up work to be done and returns an uncompleted future.
Read moreCan Future return null?
Essentially, by making some function f() return a Future<Null> , you are making await f() a synonym of null in your program ! That’s dangerous because you can use null as if it were absolutely anything, absolutely any type.30 Eki 2018
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