Q301. What are the pros and cons of for loops?
The for-loop is a commonly used iteration syntax in javascript. It has both pros and cons #### Pros 1. Works on every environment 2. You can use break and continue flow c...
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Q302. How do you handle form submissions in Next.js?
Form handling in Next.js has evolved into two primary architectures: ### 1. Modern Approach: Server Actions (App Router - Recommended): Server Actions allow forms to exec...
Q303. How do you display the current date in javascript?
You can use `new Date()` to generate a new Date object containing the current date and time. For example, let's display the current date in mm/dd/yyyy ```javascript var t...
Q304. How do you handle middleware in Next.js?
**Middleware** in Next.js enables you to run code on incoming requests before they are completed, ideal for authentication, bot detection, A/B testing, and URL rewrites: ...
Q305. How do you compare two date objects?
You need to use date.getTime() method in order to compare unix timestamp values ```javascript var d1 = new Date(); var d2 = new Date(d1); console.log(d1.getTime() === d2....
Q306. How do you implement authentication in Next.js?
Authentication in Next.js applications is typically implemented using one of three industry-standard architectural patterns: ### 1. NextAuth.js / Auth.js (Industry Standa...
Q307. How do you check if a string starts with another string?
You can use ECMAScript 6's `String.prototype.startsWith()` method to check if a string starts with another string or not. But it is not yet supported in all browsers. Let...
Q308. How to add authjs in Next.js app router?
To add authjs in nextjs app router, you can use the `next-auth` package. First, install it: ```bash npm install next-auth ``` Then, create a file named `[...nextauth].js`...
Q309. How do you trim a string in javascript?
JavaScript provided a trim method on string types to trim any whitespaces present at the beginning or ending of the string. ```javascript " Hello World ".trim(); //Hello ...
Q310. How do you handle authentication tokens in Next.js?
By using cookies or local storage to store authentication tokens. ```js // Example of setting a token in a cookie import Cookies from "js-cookie"; function setToken(token...