javascript setinterval
setInterval(function(){
console.log("Oooo Yeaaa!");
}, 2000);//run this thang every 2 secondsjavascript setinterval
setInterval(function(){
console.log("Oooo Yeaaa!");
}, 2000);//run this thang every 2 secondssetinterval react
import React, { useState, useEffect } from 'react';
const IntervalExample = () => {
const [seconds, setSeconds] = useState(0);
useEffect(() => {
const interval = setInterval(() => {
setSeconds(seconds => seconds + 1);
}, 1000);
return () => clearInterval(interval);
}, []);
return (
<div className="App">
<header className="App-header">
{seconds} seconds have elapsed since mounting.
</header>
</div>
);
};
export default IntervalExample;
//__________________________________________//
function Counter() {
let [count, setCount] = useState(0);
let [delay, setDelay] = useState(1000);
useInterval(() => {
// Your custom logic here
setCount(count + 1);
}, delay);
function handleDelayChange(e) {
setDelay(Number(e.target.value));
}
return (
<>
<h1>{count}</h1>
<input value={delay} onChange={handleDelayChange} />
</>
);
}set interval react
useEffect(() => {
const interval = setInterval(() => {
console.log('This will run every second!');
}, 1000);
return () => clearInterval(interval);
}, []);javascript setinterval
setInterval(function(){
console.log("print this once every 3 second");
}, 3000);//run this thang every 3 secondssetinterval react
let myCounter = 0;
let timeout = null;
export default CounterApp = props => {
const [counter, setCounter] = useState(0);
// Also don't forget this
useEffect(()=> {
return ()=> clearInterval(timeout);
}, []);
myCounter = counter;
const startInterval = () => {
timeout = setInterval(() => {
setCounter(counter => counter + 1);
console.log("counter: ", myCounter); // counter always return 0 but myCounter the updated value
if(myCounter === 10) clearInterval(timeout);
}, 1000);
};
}set interval react
timer: function() {
var newCount = this.state.currentCount - 1;
if(newCount >= 0) {
this.setState({ currentCount: newCount });
} else {
clearInterval(this.state.intervalId);
}
},Copyright © 2021 Codeinu
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