ReactJS lifecycle method inside a function Component

Instead of writing my components inside a class, I’d like to use the function syntax. How do I override componentDidMount, componentWillMount inside function components? Is it even possible? const grid = (props) => { console.log(props); let {skuRules} = props; const componentDidMount = () => { if(!props.fetched) { props.fetchRules(); } console.log(‘mount it!’); }; return( <Content title=”Promotions” … Read more

How to use Redirect in version 5 of react-router-dom of Reactjs

I am using the last version react-router module, named react-router-dom, that has become the default when developing web applications with React. I want to know how to make a redirection after a POST request. I have been making this code, but after the request, nothing happens. I review on the web, but all the data … Read more

Is using async componentDidMount() good?

Is using componentDidMount() as an async function good practice in React Native or should I avoid it? I need to get some info from AsyncStorage when the component mounts, but the only way I know to make that possible is to make the componentDidMount() function async. async componentDidMount() { let auth = await this.getAuth(); if … Read more

How to tell webpack dev server to serve index.html for any route

React router allows react apps to handle /arbitrary/route. In order this to work, I need my server to send the React app on any matched route. But webpack dev server doesn’t handle arbitrary end points. There is a solution here using additional express server. How to allow for webpack-dev-server to allow entry points from react-router … Read more

React-Router: No Not Found Route?

Consider the following: var AppRoutes = [ <Route handler={App} someProp=”defaultProp”> <Route path=”” handler={Page} /> </Route>, <Route handler={App} someProp=”defaultProp”> <Route path=”” handler={Header} > <Route path=”/withheader” handler={Page} /> </Route> </Route>, <Route handler={App} someProp=”defaultProp”> <Route path=”:area” handler={Area} /> <Route path=”:area/:city” handler={Area} /> <Route path=”:area/:city/:locale” handler={Area} /> <Route path=”:area/:city/:locale/:type” handler={Area} /> </Route> ]; I have an App Template, a … Read more

How to update React Context from inside a child component?

I have the language settings in the context as like below class LanguageProvider extends Component { static childContextTypes = { langConfig: PropTypes.object, }; getChildContext() { return { langConfig: ‘en’ }; } render() { return this.props.children; } } export default LanguageProvider; My application code will be something like below <LanguageProvider> <App> <MyPage /> </App> </LanguageProvider> My … Read more

Objects are not valid as a React child. If you meant to render a collection of children, use an array instead

I am setting up a React app with a Rails backend. I am getting the error “Objects are not valid as a React child (found: object with keys {id, name, info, created_at, updated_at}). If you meant to render a collection of children, use an array instead.” This is what my data looks like: [ { … Read more

Invalid hook call. Hooks can only be called inside of the body of a function component

I want to show some records in a table using React but I got this error: Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons: You might have mismatching versions of React and the renderer (such as React DOM) … Read more