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Javascript 2021-11-14 08:17:19
añadir react a node project
import React, { Component } from 'react';import logo from './logo.svg';import './App.css';class App extends Component { constructor(){ super() this.state = { numero: 0 } this.handleRandom = this.handleRandom.bind(this) this.handleRand... Add solution -
Html 2021-11-13 03:10:24
html onclick can't find function
<!-- Your script is most likely after your HTML. Include it before html, so that your function is defined. Another reason your function may be undefined is beacuse there is some kind of error blocking your function from exectuing! --> <scr... Add solution -
Javascript 2021-11-13 01:52:21
toggle function react js
class Toggle extends React.Component { constructor(props) { super(props); this.state = {isToggleOn: true}; // This binding is necessary to make `this` work in the callback this.handleClick = this.handleClick.bind(this); } handleClick... Add solution -
Javascript 2021-11-12 16:50:12
multiply function javascript
<!-- Multiplying two numbers in HTML and Javascript --> <main> <label for="firstNum">Number 1:</label> <input type="number" id="firstNum" name="firstNum"> <label for="secondNu... Add solution -
Javascript 2021-11-11 08:22:11
useRef example
/* A common use case is to access a child imperatively: */ function TextInputWithFocusButton() { const inputEl = useRef(null); const onButtonClick = () => { // `current` points to the mounted text input element inputEl.current.focus(); ... Add solution -
Javascript 2021-11-11 03:04:15
logout google account on aws amplify app
import Amplify, { Auth, Hub } from 'aws-amplify'; import awsconfig from './aws-exports'; Amplify.configure(awsconfig); class App extends Component { state = { user: null, customState: null }; componentDidMount() { Hub.listen("auth", ({... 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 -
CSS 2021-11-10 14:01:16
How to add object in an array using useState
import React, { useState } from 'react'; function App() { const [items, setItems] = useState([]); // handle click event of the button to add item const addMoreItem = () => { &nb... Add solution
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