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…
I've written a basic slideshow with javascript. It downloads a randomly-chosen JPEG from a CGI script, scales it down if necessary, deletes the previously-displayed slide and displays the new one on the page, repeating this every two seconds. The problem…
To start, I realize that I can use async/await or promise chains to accomplish this. I'm trying to understand why the following specifically doesn't work. My understanding of this code is that it should make the p1 fetch, which in…
I am struggling with a timing issue I have in Docker Here is my test code: using System.Diagnostics; DisplayStopWatchResolution(); var timer = new Stopwatch(); //begin the test while (true) { timer.Restart(); timer.Start(); //Thread.Sleep(1); await Task.Delay(1).ConfigureAwait(false); timer.Stop(); Console.WriteLine($"Task time {timer.Elapsed.TotalMilliseconds}"); }…
I am learning promise chaining and I stumbled upon a doubt. Consider the below promise chain - const myPromise = new Promise((resolve, reject) => { setTimeout(() => { resolve("foo"); }, 10000); }); myPromise .then(handleFulfilledA, handleRejectedA) // first then .then(handleFulfilledB, handleRejectedB)…