Q261. What is fallback in getStaticPaths?
Determines how to handle missing paths, with true, false, or 'blocking'. ```jsx export async function getStaticPaths() { const paths = await getAllPostIds(); return { pat...
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Q262. What is JSON?
JSON (JavaScript Object Notation) is a lightweight format that is used for data interchanging. It is based on a subset of JavaScript language in the way objects are built...
Q263. How do you handle API routes in the Next.js Pages Router?
By creating files in the `pages/api` directory, which will be treated as API endpoints. ```jsx // pages/api/hello.js export default function handler(req, res) { res.statu...
Q264. What are the syntax rules of JSON?
Below are the list of syntax rules of JSON 1. The data is in name/value pairs 2. The data is separated by commas 3. Curly braces hold objects 4. Square brackets hold arra...
Q265. How do you handle custom error pages in Next.js?
By creating a `_error.js` file in the `pages` directory. ```jsx // pages/_error.js export default function Error({ statusCode }) { return ( {statusCode ? `An error ${stat...
Q266. What is the purpose JSON stringify?
When sending data to a web server, the data has to be in a string format. You can achieve this by converting JSON object into a string using stringify() method. ```javasc...
Q267. Are there any limitations of the Pages Router?
Yes, the Pages Router has some limitations compared to the App Router, such as: - Limited support for nested routes and layouts. - Less flexibility in handling server com...
Q268. How do you parse JSON string?
When receiving the data from a web server, the data is always in a string format. But you can convert this string value to a javascript object using parse() method. ```ja...
Q269. How do you handle authentication in Next.js with the Pages Router?
By using libraries like `next-auth` or implementing custom authentication logic in API routes. ```jsx // pages/api/auth/[...nextauth].js import NextAuth from "next-auth";...
Q270. Why do you need JSON?
When exchanging data between a browser and a server, the data can only be text. Since JSON is text only, it can easily be sent to and from a server, and used as a data fo...