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 compute function in flutter?
Dart is a single threaded language, but it comes with a handy compute function to spawn isolates . In a nutshell, the compute function is useful for doing extra work on a different “thread”–it’s actually an isolate–so your flutter app does not experience “jank”. Jank occurs when the UI doesn’t render smoothly.29 Eyl 2019
Read moreWhat is compute in Dart?
compute<Q, R> function Q is the type of the message that kicks off the computation . R is the type of the value returned. The callback argument must be a top-level function, not a closure or an instance or static method of a class.
Read moreHow do you use toJson in flutter?
We have 3 steps to convert an Object/List to JSON string:
Read moreHow does JSON work in flutter?
use jsonEncode() and jsonDecode() from ‘dart:convert’ to serialize JSON data. create model classes with fromJson() and toJson() for all domain-specific JSON objects in your app. add explicit casts, validation, and null checks inside fromJson() to make the parsing code more robust.
Read moreIs Dart concurrent?
Dart supports concurrent programming with async-await, isolates, and classes such as Future and Stream .
Read moreWhat is compute in flutter?
compute<Q, R> function Spawn an isolate, run callback on that isolate, passing it message , and (eventually) return the value returned by callback . This is useful for operations that take longer than a few milliseconds, and which would therefore risk skipping frames.
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