Q641. What is the difference between list and tuple?
Both lists and tuples are ordered sequence collections in Python, but they differ fundamentally in mutability, memory allocation, and intended design use: | Feature | `li...
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Q642. What is the difference between a GET request and POST request?
The GET request is used to retrieve data from a web server, while a POST request is used to submit data to a web server. GET requests are less secure and have limit on th...
Q643. Explain the concept of type inference in TypeScript and how it works.
Type inference in TypeScript is the ability of the compiler to automatically determine the type of a variable based on its initialization value. TypeScript analyzes the a...
Q644. What is a unary function?
A unary function (also known as a **monadic** function) is a function that **accepts exactly one argument**. The term "unary" simply refers to the function's arity—the nu...
Q645. What is "key" prop and what is the benefit of using it in arrays of elements?
A `key` is a special attribute you **should** include when mapping over arrays to render data. _Key_ prop helps React identify which items have changed, are added, or are...
Q646. What are the key features of Next.js?
- Server Side Rendering (SSR): Next.js allows rendering React components on the server before sending them to the client, improving performance and SEO. - Static Site Gen...
Q647. What are the conditional directives?
VueJS provides set of directives to show or hide elements based on conditions. The available directives are: **v-if, v-else, v-else-if and v-show** **1. v-if:** The v-if ...
Q648. What does the FROM clause do?
The **`FROM`** clause identifies the source table(s), views, joined tables, or subqueries from which data is to be retrieved, filtered, and aggregated. ### Logical SQL Pr...
Q649. How are arguments passed by value or by reference?
Everything in Python is an object and all variables hold references to the objects. The references values are according to the functions; as a result you cannot change th...
Q650. How do you create a hyperlink in HTML?
Hyperlinks are created using the anchor element (**``**) paired with the essential **`href`** (Hypertext Reference) attribute: ```html Explore Technical Interview Categor...