setinterval Questions
6
Solved
It seems that when I setInterval for 1000ms, it actually fires the function every 1001ms or so. This results in a slow temporal drift the longer its running.
var start;
var f = function() {
if (!s...
Dickenson asked 17/11, 2011 at 20:8
1
Solved
let updateTimer: number;
export function Timer() {
const [count, setCount] = React.useState<number>(0);
const [messages, setMessages] = React.useState<string[]>([]);
const start = ...
Basildon asked 29/12, 2020 at 8:20
4
Solved
For an upcoming project with node.js I need to perform various housekeeping tasks at periodic times. Specifically some tasks every millisecond, others every 20 ms (50 times per second) and still ot...
Critical asked 14/9, 2012 at 23:39
1
Solved
As I was playing around trying to build a simple text carousel, I came across an issue I am having a difficult time understanding.
The layout is simple. I have a wrapper and the text I want the car...
Quadriplegic asked 15/11, 2020 at 10:32
2
Solved
I recently used hooks with React to fetch data from server but i'm facing a problem with hooks. The code seems correct but it look like the useEffect isn't called at first time but 3 seconds after ...
Pteridophyte asked 30/9, 2020 at 19:29
1
Solved
I am practicing React useState hooks to make a quiz timer that resets every ten seconds. What I have now is updating the state each second, and the p tag renders accordingly. But when I console.log...
Anglicism asked 26/8, 2020 at 19:6
2
I have been profiling a React app using Chrome dev tools and I've discovered a linearly increasing Listener count. Take a look at the screenshot below. The Listeners are in orange.
I narrowed it d...
Detonation asked 11/1, 2018 at 6:37
2
Solved
Why does this code only triggers the setInterval once and then stops...
const MainBar = ()=> {
const [clock, setClock] = useState("")
useEffect(() => {
const interval = setInterval(setC...
Vahe asked 15/6, 2020 at 6:51
4
I want to run an interval with a delay for the first time it fires. How can I do this with useEffect? Because of the syntax I've found it difficult to achieve what I want to do
The interval functi...
Blepharitis asked 23/5, 2020 at 12:8
9
hello im using this code to load content from another php file.
$(document).ready(function(){
setInterval(function(){
$('.live-stream ul').each(function(){
$(this).load('tx.php');
});
}, 1000...
Britney asked 13/12, 2011 at 17:59
5
Solved
I was wondering how can I stop a timer after ten seconds in javascript using setInterval and clearInterval??
Here's my code example, could you please tell me where I'm going wrong:
<!DOCTYPE ht...
Hardpressed asked 10/9, 2013 at 12:46
1
Solved
I have a script on foreground tab that starts (dedicated) web worker. Now I see that setTimeout(xxx, 100) in that web worker is limited to be triggered not more often than once per second instead o...
Armada asked 22/4, 2020 at 12:2
3
Solved
Consider the following example:
<script type="text/javascript">
function alertBox(){
alert('Hello World!');
}
function doSomething(){
setInterval(alertBox(), 5000); //This is for ...
Fuchsin asked 6/8, 2012 at 23:59
3
I am learning to code in JavaScript. I am programming something with some timed mouse animation. I'm just about to add some code which draws the mouse path.
It's going to be something that takes t...
Colloquial asked 9/6, 2015 at 3:49
2
Solved
I need periodically fetch data and update it to the screen.
I have this code:
const [temperature, setTemperature] = useState();
useEffect(() => {
fetch("urlToWeatherData")
.then(function(res...
Monster asked 9/1, 2020 at 15:29
3
I need to refresh the data in a component page in an interval. Also I need to refresh the data after doing some action. I am using Obeservables in the service so that I can subscribe to when the re...
Mainstay asked 6/7, 2017 at 11:24
3
Intro
I have a user input element in a create-react-app app. It lets the user type a number, or use arrows to increment the number up or down. The output then displays this number.
Problem
The ...
Reichert asked 4/12, 2019 at 6:22
2
I have a grid with different react components, all independant - in that they fetch their own data and display it.
I wanted to somehow make them automatically refetch and update every 15 minutes. ...
Alert asked 2/12, 2019 at 13:11
3
Solved
In an ExpressJS set up on top of NodeJS, I have a bit of code like this:
app.get('/keys/readresults/:keyname', basic_auth, function(req,res){
res.writeHead(200, {'content-type': 'text/json'});
s...
Coagulate asked 15/8, 2011 at 8:19
1
Solved
Need to store duration in ISO 8601 format P[n]Y[n]M[n]DT[n]H[n]M[n]S in PostgreSQL, then retrieve it in a script in the same format. In what data type to store ISO 8601 duration in PostgreSQL?
Burnaby asked 7/11, 2019 at 21:24
5
Solved
For a simple web app that needs to refresh parts of data presented to the user in set intervals, are there any downsides to just using setInterval() to get a JSON from an endpoint instead of using ...
Rusert asked 30/12, 2011 at 18:21
4
Solved
I have set the state to true before calling the setInterval function. But even though the useEffect hook is being triggered with the new value of the state, it's not being reflected in the setInter...
Vertebral asked 13/8, 2019 at 11:19
1
Solved
In useEffect-hook I set interval, which is running function "calculateCircle".
There I do some logic, including setting state(with useState-Hook).
Variables from hooks are updated, I render and see...
Moira asked 13/8, 2019 at 6:8
9
Solved
I need to implement a function to run after 60 seconds of clicking a button. Please help, I used the Timer class, but I think that that is not the best way.
Dross asked 11/10, 2014 at 5:32
1
I want to mock setInterval method and should cover the lines insed the getData method.
Can someone please help me on this.
startInterval() {
setInterval(() => this.getData(), this.state.timeIn...
Evildoer asked 6/5, 2019 at 2:49
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