Q231. 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.
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Q232. What are classes in ES6?
In ES6, JavaScript classes are primarily syntactic sugar over JavaScript’s existing prototype-based inheritance. For example, the prototype based inheritance written in f...
Q233. What is reconciliation?
`Reconciliation` is the process through which React updates the Browser DOM and makes React work faster. React use a `diffing algorithm` so that component updates are pre...
Q234. How do you use v-for directive on template?
Just similar to v-if directive on template, you can also use a `` tag with v-for directive to render a block of multiple elements. Let's take a todo example, ```javascrip...
Q235. LastName alphabetically between "Brooks" and "Gray"?
To select records alphabetically between two string boundaries, use the `BETWEEN` operator: ```sql SELECT * FROM Customers WHERE LastName BETWEEN 'Brooks' AND 'Gray' ORDE...
Q236. 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...
Q237. 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 ...
Q238. What does the IN keyword do?
Checks if a value matches any in a list. It's a shorthand for multiple ORs and often more readable. ```sql -- These are equivalent: WHERE state IN ('CA', 'NY', 'TX') WHER...
Q239. 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.
Q240. Why React uses `className` over `class` attribute?
React uses **className** instead of **class** because of a JavaScript naming conflict with the class keyword. 1. `class` is a reserved keyword in JavaScript In JavaScript...