Category: React

How can I make use of Error boundaries in functional React components? React is a popular JavaScript library for building user interfaces. With the introduction of React 16, error boundaries were introduced as a way to handle errors in React components. Error boundaries are React components that catch JavaScript errors anywhere in their child component…

How to Set a Default Value in react-select If you are working with React and using the react-select library for dropdowns, you might come across a scenario where you need to set a default value for the select component. In this blog post, we will explore different ways to achieve this. Method 1: Using the…

When working with JavaScript and Webpack, you may come across an error message that says “Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.” This error typically occurs when there is a mismatch between the configuration object you provided and the expected schema defined by Webpack.…

How to create unique keys for React elements? When working with React, it is important to provide unique keys for elements in order to optimize rendering and improve performance. In this blog post, we will explore different approaches to creating unique keys for React elements. 1. Using an index One common approach to generating unique…

What is public/manifest.json file in create-react-app? When working with a create-react-app project, you may have noticed a public/manifest.json file in the project structure. But what exactly is this file and what is its purpose? The manifest.json file is a JSON (JavaScript Object Notation) file that provides metadata about your web application. It allows you to…

Can’t type in React input text field If you are facing an issue where you cannot type in a React input text field, there are a few potential solutions that you can try. This problem can occur due to various reasons, such as incorrect event handling or state management. Let’s explore some possible solutions: Solution…

Getting an error “A non-serializable value was detected in the state” when using redux toolkit – but NOT with normal redux If you are using Redux Toolkit and encountering the error message “A non-serializable value was detected in the state” while normal Redux doesn’t throw any error, you are not alone. This error typically occurs…

Line 0: Parsing error: Cannot read property ‘map’ of undefined If you’ve encountered the error message “Line 0: Parsing error: Cannot read property ‘map’ of undefined” while working with JavaScript, don’t worry, you’re not alone. This error typically occurs when you try to use the map() method on an undefined or null value. In this…

Getting “Cannot call a class as a function” in my React Project If you are encountering the error message “Cannot call a class as a function” in your React project, don’t worry, you are not alone. This error is quite common and can be caused by a few different reasons. In this blog post, we…

Are you facing an issue where you are unable to use JSX in files with the extension ‘.js’ while using eslint-config-airbnb? Don’t worry, you’re not alone! Many developers have encountered this problem, but luckily there are a few solutions available. Solution 1: Change the file extension to ‘.jsx’ One simple solution is to change the…