You can define your own renderOption that can return the list item with a correct key value. Your code complains about the duplicated keys because by default, Autocomplete uses the getOptionLabel(option) to retrieve the key: <Autocomplete renderOption={(props, option) => { return ( <li {…props} key={option.id}> {option.name} </li> ); }} renderInput={(params) => <TextField {…params} label=”Movie” />} … Read more
You can make media queries inside React: import React, { Component } from ‘react’; class App extends Component { constructor(props) { super(props) this.state = { matches: window.matchMedia(“(min-width: 768px)”).matches }; } componentDidMount() { const handler = e => this.setState({matches: e.matches}); window.matchMedia(“(min-width: 768px)”).addEventListener(‘change’, handler); } render() { return ( <div > {this.state.matches && (<h1>Big Screen</h1>)} {!this.state.matches && … Read more
Press Ctrl + , or Cmd + , or File > Preferences > Settings. This will open Settings window. Go to Workspace tab > Extensions > Emmet. For the current vs code new version, you’ll see a menu called Included Languages. similar to this: After enter javascript in the item box and after type javascriptreact … Read more
This is used to put an explicit space in a text block, since leading and trailing spaces are ignored at compile/transformation time when there is another tag. Example: <div> Text <a>some Text</a> </div> Will result with Textsome Text on the screen. (see the missing space) <div> Text{‘ ‘} <a>some Text</a> </div> Will result as wanted … Read more
$.writeln() is what you’re looking for. See the JavaScript Tools Guide (PDF) for details.
It’s not clear what you’re asking exactly, but: props: are the key/value pairs that are being passed from the parent of the component and a component should not change it’s own props, only react to changes of props from the parent component. state: kinda like props but they are changed in the component itself using … Read more
you can wrap the setState in a Promise and use async/await as below setStateAsync(state) { return new Promise((resolve) => { this.setState(state, resolve) }); } async handleChange(input) { await this.setStateAsync({ load: true }); this.props.actions.getItemsFromThirtParty(input); await this.setStateAsync({ load: false }) } Source: ASYNC AWAIT With REACT
You need to wrap it inside an element. Something like this (I’ve added an extra tr due to the rules of tables elements): render() { return ( <table className=”table”> <tbody> {Object.keys(templates).map(function (template_name) { return ( <tr key={template_name}> <tr> <td> <b>Template: {template_name}</b> </td> </tr> {templates[template_name].items.map(function (item) { return ( <tr key={item.id}> <td>{item}</td> </tr> ); })} </tr> … Read more
You need to require the file like so: <img src={ require(“https://stackoverflow.com/questions/42580130/./images/image1.jpg”) } />
If you’d like to render curly braces as plain text within a JSX document simply use the HTML character codes. Left Curly Brace { : { Right Curly Brace } : }