componentwillreceiveprops hooks
SomeComponent (props) => {
useEffect( () => {
console.log('someProp updated');
}, [props.someProp])
return <div>Hi {props.someProp}</div>
}const { useState, useEffect, useMemo } = React;
function App() {
const [count, setCount] = useState(50);
useEffect(() => {
setTimeout(() => {
setCount(150);
}, 2000);
}, []);
return <DisplayCount count={count} />;
}
function DisplayCount(props) {
const count = useMemo(() => props.count > 100 ? 100 : props.count, [props.count]);
return <div> {count} </div>;
}
ReactDOM.render(<App />, document.getElementById("root"));
Also in JavaScript:
- $.post jquery beforesend loader
- javascript onclick
- Cast to ObjectId failed for value
- get all keys in json object
- if keypress javascript
- queryselector for jquery
- how to read json file with gluegun
- angular get name of component
- math.floor js
- Expected an assignment or function call and instead saw an expression
- vuejs accessing props from data
- twig for
- indexof js mdn
- local storage javascript array
- make indexOF in js
- gatsbyjs image sharp
- vuejs 3 app.mount
- jQuery check a radio button
- shuffle an array of numbers in javascript
- javascript extract array from object
- how to check if 2 images are touching js
- Javascript track mouse pointer
- node command get to much time
- check if element is last child jquery