Consider the following assignments: const promise1 = (async () => { await someAsyncFunction(); })(); const promise2 = new Promise(async resolve => { await someAsyncFunction(); resolve(); }); Is there any meaningful difference between these two Promises (other than verbosity)?
I'm just learning the details of how the event loop in Node works. I learned that the promise queue takes priority over the timer queue, which takes priority over the I/O queue. async function asyncFunc() { let sum = 0;…
I have been given the task of reading a file, processing the data and returning the results. As it is an async process, I run into the problem where you cannot return from a .then, and an unresolved Promise is…
so consider the code below, when I resolve a promise the result is in pending state in the very first moment( I know after I expand the dropdown I will see the expected result but in here I'm questioning the…
I know existence of a throw inside of a promise, change the state of that specific promise to rejected and the result will be the error message, but when I type this throw inside of a setTimeout located inside of…
I'm new to Cypress and JavaScript. I want to create a loop that executes a request with different values until I get a certain response. let continue_loop = 1; loginLoop: for (let i = 1; i < 100; i++) {…
With React Native, this app needs to: Move an object Then update text (a number) on the screen Then move another object Then update the same text (another number) on the screen Problem: #4 does not update on the screen.…
I want to get data from DB based on the boolean flag. async function main() { let promises = []; if (false) { promises.push(Promise.resolve("highlights from DB")); } if (true) { promises.push(Promise.resolve("featured video from DB")); } if (true) { promises.push(Promise.resolve("categories from…
I'm struggeling with returning the result of a Promise to the next .then function. I'm sure I'm blind and it is really small issue, but actually I can't see the reason why in the parameter of the next .then function…
I have an external asynchronous script needs to finish executing before the page loads. To my understanding (from this thread), the default behaviour before the page starts to load is that it finishes rendering the head tag's contents, and if…