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Javascript 2022-01-23 20:30:07
Usestate callback
//You need to use useEffect hook to achieve this. const [counter, setCounter] = useState(0); const doSomething = () => { setCounter(123); } useEffect(() => { console.log('Do something after counter has changed', counter); }, [counter]); Add solution -
Javascript 2022-01-23 07:46:23
how to use useeffect
import React, { useState, useEffect } from 'react'; function Example() { const [count, setCount] = useState(0); // Similar to componentDidMount and componentDidUpdate: useEffect(() => { // Update the document title using the browser API... Add solution -
Javascript 2022-01-23 05:40:39
componentdidmount in hooks
import React, { useState, useEffect } from 'react'; function Example() { const [count, setCount] = useState(0); // Similar to componentDidMount and componentDidUpdate: useEffect(() => { // Update the document title using the browser AP... Add solution -
Javascript 2021-11-17 18:06:10
React useState hook
import React, { useState } from 'react'; function Example() { // Declare a new state variable, which we'll call "count" const [count, setCount] = useState(0); return ( <div> <p>You clicked {count} times</p> ... Add solution -
Javascript 2021-11-16 22:18:12
usestate in react
import React, { useState } from 'react'; function Example() { // Declare a new state variable, which we'll call "count" const [count, setCount] = useState(0); return ( <div> <p>You clicked {count} times</p> ... Add solution -
Javascript 2021-11-10 16:07:18
react enzyme simulate click sub component
// App.js function App() { const [count, setCount] = React.useState(0) const onClick = () => { setCount((prevState) => prevState + 1) } return ( <div> <button onClick={onClick}>{count}</button> </div&... Add solution -
Javascript 2021-11-03 14:24:09
change state in react
import React, { useState } from 'react'; function Example() { // Declare a new state variable, which we'll call "count" const [count, setCount] = useState(0); return ( <div> <p>You clicked {count} times</p> ... Add solution -
Other 2021-11-02 17:23:10
componentDidmount event on fonctional component
import React, { useState, useEffect } from 'react'; function Example() { const [count, setCount] = useState(0); // Similaire à componentDidMount et componentDidUpdate : useEffect(() => { // Met à jour le titre du document via l&r... Add solution -
Javascript 2021-10-28 14:55:07
hooks in react
import React, { useState, useEffect } from "react"; export default props => { console.log("componentWillMount"); console.log("componentWillReceiveProps", props); const [x, setX] = useState(0); const [y, setY] = use... Add solution