Error boundaries, introduced in React 16, offer a powerful mechanism to gracefully handle errors within isolated parts of your component tree. By strategically implementing error boundaries, you can prevent entire application crashes, display informative fallback UIs, and maintain a seamless user experience even when errors occur. Understanding Error Boundaries: Concept: Error boundaries are class components (or…
Category: Programming Languages
Worker Threads in JavaScript: Enhancing Performance with Parallelism
JavaScript has evolved over the years to address performance bottlenecks and handle resource-intensive tasks more efficiently. One such enhancement is the introduction of Worker Threads. Worker Threads allow developers to execute tasks concurrently in the background, thereby leveraging multi-core processors and boosting performance.
React.js vs. Next.js – Choosing the Right Framework for Your Web Development Needs
React.js and Next.js are two popular JavaScript frameworks utilized for developing contemporary web applications. Despite their common foundation in React and several shared traits, they possess distinct characteristics and usage scenarios, making them appropriate for different purposes.
React Hook To Check If User Has Changed/Minimize the Browser Tab
Today we will learn how to develop a Custom React-Js hook to determine whether the user has changed the browser tab or minimized the browser window. This hook will work for Chrome, Opera, Firefox, Edge, Safari etc…
Custom React Hook – Get Device Screen Information – Simple JavaScript Code
Get User Device Screen Information using React Js Hook. Hello Readers… In this article, we will learn how to create our own hook for react js. There is a large number of hooks available in React Js. But also some important features/hooks are still missing in this framework. Today we are going to develop our…
Spread Operator and Rest Parameters in JavaScript
Spread operator in JavaScript was introduced in ES6. The syntax of the spread operator is 3 dots. The spread operator allows us to spread out the elements of an iterable object such as an Array, Map, or Set. Rest parameter in javascript allows us to handle multiple parameters in any function. We can pass an indefinite number of parameters to any function. By the use of the rest parameter, we can call a function with any number of arguments.
Find and return the sum of missing and duplicate number – Easy Code
The input “nums” is supposed to be an array of unique integers ranging from 1 to nums.length. However there is a mistake: one of the number in the array is duplicated, which means another number is missing. Find and return the sum of the duplicated number and the missing number. Example: In the array [4,…
Write a function to take a positive integer and return the largest power of two less than or equal to this integer – JavaScript Program
Write a function to take a positive integer and return the largest power of two less than or equal to this integer – JavaScript Program. A function that takes a positive integer and returns the largest power of two less than or equal to that integer. Input: 5 Output: 4 Input: 16 Output:…