Doubt: According to MDN docs, then() and catch() returns a Pending Promise Immediately and if the handler functions doesn't return anything, the returned promise becomes fulfilled with undefined value. So, if current Promise is P0, then() (attached to P0) returns…
I have a task as below which I have to solve using Promise Chaining in JavaScript and I am getting some unexpected outputs -: Task: If Mike is able to clean the room, then he goes for football. In football…
I am working with OpenWeatherMap in order to grab the current weather of, say, Helsinki. My latest MNWE (N as non) is: import axios from 'axios' const apiKey = import.meta.env.VITE_OWM_API_KEY const getCityCoordinatesApiUrl = (city) => { return `https://api.openweathermap.org/data/2.5/weather?q=${city}&appid=${apiKey}` } const…
Why does not "await" work? Future<void> f1() async{ Future.delayed(Duration(seconds:2), (){ print('f1'); }); } void main() async{ print('start'); await f1(); print('end'); } output start end f1 but await working in next code. Future<void> f1() async{ return Future.delayed(Duration(seconds:2), (){ print('f1'); }); }…
const AUTH_DISABLED = 0; const AUTH_LOGIN = 1; const AUTH_LOGOUT = 2; function App() { const [showLoginPopup, setShowLoginPopup] = useState(false); const [authButtonState, setAuthButtonState] = useState(AUTH_DISABLED); const handleClick = () => { if ( authButtonState == AUTH_LOGOUT ) { authGlobal.logout().then( ()…
I'm trying to synchronize calendars, but the receiving server only wants "bite-sized" data, so I decided to sync PER USER PER MONTH. Thus, I made a double loop: First I loop through all users, and within that loop, I loop…
First Approach const list = reactive([1, 2, 3, 4, 5]); const handleClick = () =>{ list.push(...[11, 12, 13, 14, 15]); list.push(...[16, 17, 18, 19, 20]); Promise.resolve().then(() => { list.push(33) }); }; Second Approach const list = reactive([1, 2, 3, 4,…
I have a function in my javascript code that loops through an array and performs some time-taking actions on each item of the array. It works fine for now when the number of items is low in the array but…
I have a problem that I don’t understand how to solve, it should work, but it doesn’t. const getPhones = async () => { await fetch(url, requestOptions) .then((response) => response.text()) .then((XMLdata) => { const parser = new XMLParser() const jObj…
I'm new to JS and I don't understand the behaviour I see in the code snippet const task1 = new Promise((res, rej) => { setTimeout(() => res('one'), 5000) }) const task2 = new Promise((res, rej) => { setTimeout(() => res('two'),…