setinterval 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} />
</>
);
}function func(){
console.log("Ran")
}
setInterval(func,1000)//Runs the "func" function every secondcomponentDidMount() {
this.interval = setInterval(() => this.setState({ time: Date.now() }), 1000);
}
componentWillUnmount() {
clearInterval(this.interval);
}
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