Error boundaries are special React components that catch JavaScript errors in their child component tree, log them, and display a fallback UI instead of crashing the whole app. Why Use Error Boundaries? React components can crash due to bugs or unexpected data. Without error boundaries, a single component error could take down your entire app.… Continue reading React Error Boundaries
Tag: React Web Application
Defining Collections in Payload CMS
Introduction Payload CMS uses collections to group and structure data, similar to database tables. In this guide, we’ll explore how to define collections, customize fields, and set up basic relationships. What is a Collection? A collection in Payload CMS is a way to organize similar data types, such as Posts, Authors, and Categories. Each collection… Continue reading Defining Collections in Payload CMS
useId hook in React
React’s useId hook provides a unique, stable ID that is useful for accessibility, form inputs, and ensuring consistency across server-side and client-side renders. It was introduced to help developers avoid manually generating IDs, particularly in dynamic or reusable components. How It Works useId generates a unique ID string that remains stable across the component’s lifecycle.… Continue reading useId hook in React
useCallback hook in React
React’s useCallback hook is designed to optimize performance by memoizing functions, ensuring they are only recreated when their dependencies change. It’s particularly useful in preventing unnecessary re-renders in child components that rely on stable function references. How It Works React creates a new function every time a component re-renders. While this usually isn’t a problem,… Continue reading useCallback hook in React
Optimizing Performance with useMemo in React
React’s useMemo hook is a powerful tool for optimizing performance by memoizing the results of expensive computations, ensuring they are recalculated only when necessary. How It Works useMemo stores the result of a function and only recomputes it when one of its dependencies changes. This prevents unnecessary recalculations, improving performance in cases where the computation… Continue reading Optimizing Performance with useMemo in React
useRef Hook in React
What is useRef? The useRef hook returns a mutable object that persists across renders. Unlike state variables, updating a useRef value does not cause a re-render of the component. This makes it ideal for storing values that need to persist between renders but don’t directly influence the UI. const ref = useRef(initialValue); ref: The object… Continue reading useRef Hook in React
useReducer vs useState in React
React provides several hooks to help manage state in functional components. Two of the most commonly used are useState and useReducer. What is useState? The useState hook is the simplest way to manage state in a functional component. It allows you to add state to a component, and it returns an array containing the current… Continue reading useReducer vs useState in React
useState Hook in React
What is useState? In React, state refers to data that can change over time and affect how a component behaves or looks. The useState hook provides a way to introduce state variables into functional components. Before hooks were introduced, state management was only possible in class components, but with the advent of hooks, functional components… Continue reading useState Hook in React
useReducer Hook in React
What is useReducer? useReducer is a hook that is designed for handling more complex state management scenarios. It’s especially useful when state changes involve multiple sub-values or when state transitions depend on various actions. The useReducer hook works by taking a reducer function and an initial state as arguments, and it returns the current state… Continue reading useReducer Hook in React
How to display a file in new browser tab using a download link
If you have a link to a file that can be used to download any file stored in cloud storage, you can use the same to render the file in a new browser tab in JavaScript. Following is a sample script to do the same: getFilePreview(fileURL, fileType) { console.log(“Inside… Continue reading How to display a file in new browser tab using a download link