React Hooks & react forwardref hooks & useReducer react how to call child component method in another child component left index list => right map right map back to default value, right child call left child methods ??? https://stackoverflow.co…
In this lesson we'll see an interesting situation where we're actually calling a function component and getting a dreaded React error: "Rendered fewer hooks than expected." We'll learn why that is happening, how it can be avoided, and how our &q…
Validating forms in React can take several lines of code to build. However, Formik's ErrorMessage component and Yup simplify that process. import { ErrorMessage, Field, Form, Formik } from 'formik'; import React from 'react'; import { render } from '…
Starting from v15.5 if we wanted to use React's PropTypes we had to change our code to use a separate node module, now we can go one step further and get rid of that extra dependency just by using flow type annotations in our create-react-app project…
The data contained in this.props.children is not always what you might expect. React provides React.children to allow for a more consistent development experience. For example, you have an component: class App extends React.Component { render(){ retu…
Error Boundaries are the way you handle errors with React, and Suspense embraces this completely. Let's take a look at how to handle asynchronous errors with Suspense and Error Boundaries. In previous post, we used React.Suspense with fallback (for l…
