Q161. What is the purpose of the race method in promise?
Promise.race() method will return the promise instance which is firstly resolved or rejected. Let's take an example of race() method where promise2 is resolved first ```j...
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Q162. How can we find the version of React at runtime in the browser?
You can use `React.version` to get the version. ```jsx harmony const REACT_VERSION = React.version; ReactDOM.render( {`React version: ${REACT_VERSION}`}, document.getElem...
Q163. What is the use of next-SEO in Next.js?
next-seo is a plugin for managing SEO metadata in Next.js applications, making it easier to set and manage meta tags, Open Graph tags, and other SEO-related elements. ```...
Q164. What is a strict mode in javascript?
JavaScript’s "use strict" directive is used to opt into a stricter parsing and error-handling mode for your scripts or functions. It helps catch common bugs, makes your c...
Q165. How do you handle routing in a Next.js app?
Next.js handles routing through a combination of file-system conventions and client-side navigation components: ### 1. Declarative Navigation (``): Always use `next/link`...
Q166. Why do you need strict mode?
Strict mode is useful to write "secure" JavaScript by notifying "bad syntax" into real errors. For example, it eliminates accidentally creating a global variable by throw...
Q167. How do you apply vendor prefixes to inline styles in React?
React _does not_ apply _vendor prefixes_ automatically. You need to add vendor prefixes manually. ```jsx harmony ```
Q168. How do you configure next-i18next in Next.js?
By creating a next-i18next.config.js file and initializing it in the app. ```js // next-i18next.config.js module.exports = { i18n: { defaultLocale: "en", locales: ["en", ...
Q169. How do you declare strict mode?
The strict mode is declared by adding "use strict"; to the beginning of a script or a function. If declared at the beginning of a script, it has global scope. ```javascri...
Q170. How to import and export components using React and ES6?
You should use default for exporting the components ```jsx harmony import User from "user"; export default function MyProfile { return //...; } ``` See Class ```jsx harmo...