Q111. What is the next/head package used for?
To manage the document head for meta tags, title,description, og etc. ```jsx import Head from "next/head"; export default function Home() { return ( My page title Hello W...
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Q112. How do you check web storage browser support?
You need to check browser support for localStorage and sessionStorage before using web storage, ```javascript if (typeof Storage !== "undefined") { // Code for localStora...
Q113. How you implement Server Side Rendering or SSR?
React is already equipped to handle rendering on Node servers. A special version of the DOM renderer is available, which follows the same pattern as on the client side. `...
Q114. How do you add custom headers in Next.js?
Custom HTTP headers (such as CORS permissions, Cache-Control policies, or security headers like `Content-Security-Policy` and `X-Frame-Options`) can be configured in **`n...
Q115. How do you check web workers browser support?
You need to check browser support for web workers before using it ```javascript if (typeof Worker !== "undefined") { // code for Web worker support. } else { // Sorry! No...
Q116. What is the use of next export command?
Historically, **`next export`** was the CLI command used to export a Next.js application into pure static HTML/CSS/JS files that could be hosted on any static hosting pro...
Q117. Give an example of a web worker
You need to follow below steps to start using web workers for counting example 1. Create a Web Worker File: You need to write a script to increment the count value. Let's...
Q118. How do you optimize fonts in Next.js?
Next.js includes the built-in **`next/font`** module, which automatically optimizes typography and removes external network requests for zero layout shift: ### Core Benef...
Q119. What are the restrictions of web workers on DOM?
WebWorkers don't have access to below javascript objects since they are defined in an external files 1. Window object 2. Document object 3. Parent object
Q120. What is a switching component?
A _switching component_ is a component that renders one of many components. We need to use object to map prop values to components. For example, a switching component to ...