Category: React

  • ReactJS: Warning: setState(…): Cannot update during an existing state transition

    ReactJS: Warning: setState(…): Cannot update during an existing state transition If you are a React developer, you might have come across the warning message “Warning: setState(…): Cannot update during an existing state transition”. This warning occurs when you try to update the state of a component while a previous state update is still in progress.…

  • React vs ReactDOM?

    React vs ReactDOM: Understanding the Difference When working with JavaScript and specifically with React, you may have come across two terms – React and ReactDOM. These terms are often used interchangeably, but they actually refer to different things. In this article, we will explore the difference between React and ReactDOM and when to use each…

  • Axios get in url works but with second parameter as object it doesn’t

    Using Axios to Make GET Requests with URL Parameters When using Axios, you may encounter a situation where making a GET request with URL parameters works fine when passed as part of the URL itself, but fails when passed as the second parameter as an object. In this blog post, we will explore this issue…

  • Default property value in React component using TypeScript

    When working with React components in TypeScript, you may often find yourself needing to set default values for certain properties. In this blog post, we will explore different ways to set default property values in React components using TypeScript. 1. Using defaultProps The easiest way to set default property values in React components is by…

  • Why are Fragments in React 16 better than container divs?

    Why are Fragments in React 16 better than container divs? When working with React, you may have come across the need to wrap multiple elements in a container. Traditionally, developers have used a element as a container. However, with the introduction of React 16, a new feature called Fragments has been introduced, which offers a…

  • With useEffect, how can I skip applying an effect upon the initial render?

    In JavaScript, the useEffect hook is a powerful tool for managing side effects in functional components. It allows you to perform actions such as fetching data, subscribing to events, or manipulating the DOM. By default, the effect runs after every render of the component, including the initial render. However, there are cases where you might…

  • React functional stateless component, PureComponent, Component; what are the differences and when should we use what?

    React functional stateless component, PureComponent, Component; what are the differences and when should we use what? React is a popular JavaScript library used for building user interfaces. When working with React, you may come across different types of components such as functional stateless components, PureComponent, and Component. In this article, we will explore the differences…

  • Error: [PrivateRoute] is not a component. All component children of must be a or

    Error: [PrivateRoute] is not a component. All component children of must be a or If you are working with React and encountering the error message “Error: [PrivateRoute] is not a component. All component children of must be a or <React.Fragment>”, don’t worry, you’re not alone. This error typically occurs when you are using the React…

  • React’ was used before it was defined

    React’ was used before it was defined If you have encountered the error message “React’ was used before it was defined” while working with JavaScript and React, don’t worry, you’re not alone. This error typically occurs when you try to use a React component or element before it has been imported or defined. There are…

  • How to do a redirect to another route with react-router?

    React Router is a powerful routing library for React applications that allows you to handle navigation and routing in a declarative way. One common task you may encounter while using React Router is redirecting to another route programmatically. In this blog post, we will explore different ways to achieve this using react-router. Method 1: Using…