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Javascript 2022-01-27 19:50:47
usestate react 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 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 02:16:22
react onclick parameter
import React from 'react'; const ExampleComponent = () => { function sayHello(name) { alert(`hello, ${name}`); } return ( <button onClick={() => sayHello('James')}>Greet</button> ); } export default ExampleComponent; Add solution -
Javascript 2021-11-18 22:16:23
what does the useReducer do in react
const initialState = {count: 0}; function reducer(state, action) { switch (action.type) { case 'increment': return {count: state.count + 1}; case 'decrement': return {count: state.count - 1}; default: throw new Error(); ... 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
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