Q1091. What is undefined property?
The undefined property indicates that a variable has not been assigned a value, or declared but not initialized at all. The type of undefined value is undefined too. ```j...
Technical Question Bank · Peer-Reviewed
Job Interview Questions and Answers Directory
Search and filter frequently asked interview questions across technical, programming, and behavioral domains. Tailor your interview preparation by difficulty for freshers or experienced developers (2,728 available).
Q1092. What are the popular packages for animation?
In modern React application development, animating components smoothly requires specialized libraries that handle component mount/unmount lifecycles and GPU-accelerated t...
Q1093. How do you handle CORS in Next.js API routes?
By setting appropriate headers in the API route response. ```js export default function handler(req, res) { res.setHeader("Access-Control-Allow-Origin", "*"); res.setHead...
Q1094. What are the hook functions provided by directives?
A directive object can provide several hook functions, 1. bind: This occurs once the directive is attached to the element. 2. inserted: This hook occurs once the element ...
Q1095. Delete records where FirstName is "John"?
To delete all rows where `FirstName` equals "John": ```sql DELETE FROM Customers WHERE FirstName = 'John'; ``` *Safety Warning:* If you accidentally omit `WHERE FirstName...
Q1096. Do you know what is the difference between lists and tuples? Can you give me an example for their usage?
First list are mutable while tuples are not, and second tuples can be hashed e.g. to be used as keys for dictionaries. As an example of their usage, tuples are used when ...
Q1097. How do you create a responsive CSS animation?
We can create responsive CSS animation by using relative units like percentages instead of fixed units like pixels. We can also use media queries to adjust the animation ...
Q1098. What is null value?
The value null represents the intentional absence of any object value. It is one of JavaScript's primitive values. The type of null value is object. You can empty the var...
Q1099. What is the benefit of styles modules?
It is recommended to avoid hard coding style values in components. Any values that are likely to be used across different UI components should be extracted into their own...
Q1100. How do you manage cookies in Next.js?
By using the cookie package or next-cookies to read and write cookies in API routes or server-side functions. ```js import Cookies from "cookies"; export default function...