Q61. What is the `keyof` operator in TypeScript?
The `keyof` operator in TypeScript is used to get a union type of all the keys (property names) of an object type. It allows you to access and use the keys of an object t...
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Q62. What is the purpose of the <script> tag in HTML?
The `` tag is either used to embed client-side script(Javascript), or it points to an external script file through the src attribute.
Q63. What is negative index in Python?
Python sequences can be index in positive and negative numbers. For positive index, 0 is the first index, 1 is the second index and so forth. For negative index, (-1) is ...
Q64. What is the purpose of the viewport meta tag?
The **viewport meta tag** informs mobile browsers how to control the page's dimensions and scaling relative to the physical device screen: ```html ``` ### Why It Is Manda...
Q65. What is enum in TypeScript?
Enums in TypeScript is a way to define a collection of related constants. Enums assign automatic numeric values to each enumerator by default, but you can also customize ...
Q66. What is the public folder in Next.js?
The **`public`** directory located at the root of a Next.js project serves static assets directly from the root domain path without going through Webpack or build bundlin...
Q67. What is the purpose of the <noscript> tag in HTML?
The `` tag in used to display text for those browsers which does not support script tag or the browser disabled the script by user.
Q68. What is dynamic import in Next.js?
A feature to load components or modules dynamically. ```jsx const ComponentA = dynamic(() => import("../components/A")); const ComponentB = dynamic(() => import("../compo...
Q69. What is the difference between Xrange and range?
The distinction between `range` and `xrange` was a landmark difference between Python 2 and Python 3: ### Historical Context: - **In Python 2**: - `range(n)` eagerly crea...
Q70. What is the purpose of the <fieldset> tag in HTML?
The **``** tag is used in HTML forms to logically group related form controls and labels together, both visually and semantically: ```html Billing Address Information Str...