I am a beginner to swift and ios development and need some help with structured concurrency. I need a long running function to execute on a background thread, and be cancelled if it is called again before completing. Unfortunately, my…
I'm fairly new to Flutter and am trying to check a Firebase document for user information before building the page. The method to check the document is async but if I try to await the result in my class HomePage…
Its often said that async/await is just syntactic sugar over promises, and we can re-write code using one approach over other. Lets say I have this piece of code using promises: async function main() { const promise = new Promise((resolve)…
In my WPF application (.NET 8.0) I want to consume a asynchronous operation from a 3rd party library. When testing with all code inside the MainWindow.xaml.cs it works smoothely. When I move the same code into a separate class, using…
I understand that setState is asynchronous, but does it explicitly wait for all other code to be executed before it completes (even setTimeout with delay)? I've been trying to increment a counter using a simple recursive function in React, but…
I'm trying to call an animation but simultaneously call an async function. Once that resolves it should stop the animation console.log(context, "context value outside") //updating const animate = useCallback( async (index = 0) => { console.log(context, "context value inside") //not…
Let's say there's an async function that has an implementation bug, for example: function resolveAfter2Seconds() { return new Promise((resolve) => { setTimeout(() => { resolve(undefined_variable); }, 2000); }); } How can I call this function and handle the ReferenceError it…
I want to know: why we have to add the word:'async' declaration to the function which call a sync function? Shouldn't it be declared as 'sync'? Sorry, I am not familiar with 'async/await',and maybe this is only a basic javascript…
Compare these 2 snippets: try { console.log('start') const test = (() => { console.log('inside') const a = null; a.c = 1 })() console.log('end') } catch (error) { console.log('nvmnghia'); console.error(error); } // prints: // start // inside // nvmnghia // TypeError:…
In this code snippet I want to know why async and await not working. This code in my component I am sure that is no errors: const { success, loading, error } = useSelector( (state) => state.loginReducer ); const formik…