In computer science, future, promise, delay, and deferred refer to constructs used for synchronizing program execution in some concurrent programming languages . They describe an object that acts as a proxy for a result that is initially unknown, usually because the computation of its value is not yet complete.
Read moreHow do you initialize darts in Future?
To initialize a Future<Type>, see the following example: Future<String> myFutureString = Future(() => “Future String”); Here “Future String” is a String and so the code above returns an instance of Future<String>.
Read moreHow is Whencompleted () different from then () in Future?
whenComplete will fire a function either when the Future completes with an error or not, instead . then will fire a function after the Future completes without an error .
Read moreHow do you deal with Future in Flutter?
Sometimes you don’t want to turn the function into a Future or mark it async, so the other way to handle a Future is by using the . then function . It takes in a function that will be called with the value type of your Future. It’s similar to a Promise in JavaScript without the resolve, reject explicitness.
Read moreHow do you wait in Flutter?
seconds; timer. start(); // do something to wait for 2 seconds await Future. delayed(const Duration(seconds: 2), (){}); expect(timer. seconds, startTime – 2); });
Read moreWhat is Future wait Flutter?
According to the flutter docs, Future. wait() : Returns a future which will complete once all the provided futures have completed, either with their results , or with an error if any of the provided futures fail.28 Eki 2020
Read moreHow do you initialize a Dart Future?
To initialize a Future<Type>, see the following example: Future<String> myFutureString = Future(() => “Future String”); Here “Future String” is a String and so the code above returns an instance of Future<String>.
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