Q2291. What is the purpose of double tilde operator?
The double tilde operator (`~~`) in JavaScript is known as the **double bitwise NOT operator**. It is commonly used as a shorthand idiom to truncate a floating-point numb...
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Q2292. What is the Redux middleware signature?
Middleware is written as **three nested (curried) functions**: ```javascript const exampleMiddleware = (store) => (next) => (action) => { // store => { getState, dispatch...
Q2293. What is Try Block?
A **`try` block** in Python encapsulates code that may potentially raise a runtime exception, allowing your application to handle errors gracefully without crashing: ```p...
Q2294. How do you convert character to ASCII code?
You can use the `String.prototype.charCodeAt()` method to convert string characters to ASCII numbers. For example, let's find ASCII code for the first letter of 'ABC' str...
Q2295. What happens when you dispatch an action?
1. `store.dispatch(action)` is called with a plain action object (`{ type, payload }`). 2. The action passes through the **middleware chain** in order (e.g., logger → thu...
Q2296. How can we access a module written in Python from C?
Python modules can be imported and executed from C/C++ applications via the official Python C API (`#include `): ```c #include void run_python_logic() { Py_Initialize(); ...
Q2297. What is ArrayBuffer?
An ArrayBuffer object is used to represent a generic, fixed-length raw binary data buffer. You can create it as below, ```javascript let buffer = new ArrayBuffer(16); // ...
Q2298. How would you structure Redux in a large application?
The recommended approach (and what Redux Toolkit is designed around) is a **"feature folder" / "ducks"** structure rather than splitting by technical type (`actions/`, `r...
Q2299. Write a program to count the number of capital letters in a file?
Here is a memory-efficient Python program to count uppercase capital letters in a file: ```python def count_uppercase_letters(filepath: str) -> int: """Counts uppercase l...
Q2300. What is the output of below string expression?
```javascript console.log("Welcome to JS world"[0]); ``` The output of the above expression is "W". **Explanation:** The bracket notation with specific index on a string ...