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Questions - future

LateInitializationError with Future

I hope you could help me! Error saying 'tables' has not been initiliazed. But when I set tables = [] instead of widget.data.then((result) {tables = result.tables;}) it works. I think the problem comes...
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Jordaninho

flutter

initialization

future

Votes: 0

Answers: 1

Latest Answer

Future doesn't contain any data. It's an asynchronous computation that will provide data "later". The initialization error happens because the variable 'tables' is marked as late init but is...
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Michael m

Is it theroretically possible to replace all mutexes with futures?

For instance: How would a programmer design a system that requires many threads to read and write concurrently to shared data using the future-promise paradigm without using mutexes or other locking m...
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deltav

multithreading

concurrency

promise

mutex

future

Votes: 0

Answers: 1

Latest Answer

Any high-level concurrent API (async/await, future-promise, callbacks, ...) needs a way to run concurrently on some system and they all use low-level primitives such as locks and atomics. The future-p...
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Louis Lac

Use user input in API calls and then use the response in a widget in Flutter?

I am trying to make an app in flutter where the user enters something in a search (im using SearchDelegate). Then the app takes what they entered and makes an api request to my api with it. And then i...
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Samisai

flutter

api

dart

future

setstate

Votes: 0

Answers: 1

Latest Answer

Try to use conditional statement to show default data until api response data are not fetched. @override Widget buildResults(BuildContext context) { _MyHomePageState()._getNews(res); // res is t...
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Zakaria Hossain

Launch concurrent dependent queries to an API

I need to launch several queries to an API from a Java application. Some of those query depends of the result of the previous ones. I want each query to be executed as soon as possible (ie. as soon as...
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Nicolas Noilhan

java

concurrency

parallel-processing

reactive-programming

future

Votes: 0

Answers: 1

Latest Answer

This might not be a full answer, but I wanted to share my thoughts on this interesting problem: I would create a worker queue that blocks as long as there are no tasks to process. Each task to process...
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