Coding Interview Resources
This channel contains the free resources and solution of coding problems which are usually asked in the interviews. Managed by: @love_data
Больше📈 Аналитический обзор Telegram-канала Coding Interview Resources
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📝 Описание и контентная политика
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“This channel contains the free resources and solution of coding problems which are usually asked in the interviews.
Managed by: @love_data”
Благодаря высокой частоте обновлений (последние данные получены 28 августа, 2026) канал поддерживает актуальность и высокий уровень охвата публикаций. Аналитика показывает, что аудитория активно взаимодействует с контентом, что делает его важной точкой влияния в категории Технологии и приложения.
var has function scope and is hoisted; let and const have block scope. const defines constants and cannot be reassigned.
📍 3. What are closures in JavaScript?
Answer: Closures occur when a function remembers and accesses variables from its outer scope even after that outer function has finished executing.
📍 4. What is the Event Loop?
Answer: The Event Loop manages asynchronous callbacks by pulling tasks from the callback queue and executing them after the call stack is empty, enabling non-blocking code.
📍 5. What are Promises and how do they help?
Answer: Promises represent the eventual completion or failure of an asynchronous operation, allowing cleaner async code with .then(), .catch(), and async/await.
📍 6. Explain 'this' keyword in JavaScript.
Answer: this refers to the context object in which the current function is executed — it varies in global, object, class, or arrow function contexts.
📍 7. What is prototypal inheritance?
Answer: Objects inherit properties and methods from a prototype object, allowing reuse and shared behavior in JavaScript.
📍 8. Difference between == and === operators?
Answer: == compares values after type coercion; === compares both value and type strictly.
📍 9. How do you handle errors in JavaScript?
Answer: Using try...catch blocks for synchronous code and .catch() or try-catch with async/await for asynchronous errors.
📍 🔟 What are modules in JavaScript and their benefits?
Answer: Modules split code into reusable files with import and export. They improve maintainability and scope management.
💡 Pro Tip: Complement your answers with simple code snippets and real project scenarios wherever possible.
❤️ Tap for more!let num = 10;
if (num % 2 === 0) {
console.log("Even");
} else {
console.log("Odd");
}
🔍 Q2. How do you reverse a string?
let text = "hello";
let reversedText = text.split("").reverse().join("");
console.log(reversedText); // Output: olleh
🔍 Q3. Write a function to find the factorial of a number.
function factorial(n) {
let result = 1;
for (let i = 1; i <= n; i++) {
result *= i;
}
return result;
}
console.log(factorial(5)); // Output: 120
🔍 Q4. How do you remove duplicates from an array?
let items = [1, 2, 2, 3, 4, 4];
let uniqueItems = [...new Set(items)];
console.log(uniqueItems);
🔍 Q5. Print numbers from 1 to 10 using a loop.
for (let i = 1; i <= 10; i++) {
console.log(i);
}
🔍 Q6. Check if a word is a palindrome.
let word = "madam";
let reversed = word.split("").reverse().join("");
if (word === reversed) {
console.log("Palindrome");
} else {
console.log("Not a palindrome");
}
💬 Tap ❤️ for more!import numpy as np
arr = np.array([1, 2, 3])
🔹 4. What is broadcasting in NumPy?
Broadcasting lets you perform operations on arrays of different shapes. For example, adding a scalar to an array applies the operation to each element.
🔹 5. How to generate random numbers
Use np.random.rand() for uniform distribution, np.random.randn() for normal distribution, and np.random.randint() for random integers.
🔹 6. How to reshape an array
Use .reshape() to change the shape of an array without changing its data.
Example: arr.reshape(2, 3) turns a 1D array of 6 elements into a 2x3 matrix.
🔹 7. Basic statistical operations
Use functions like mean(), std(), var(), sum(), min(), and max() to get quick stats from your data.
🔹 8. Difference between zeros(), ones(), and empty()
np.zeros() creates an array filled with 0s, np.ones() with 1s, and np.empty() creates an array without initializing values (faster but unpredictable).
🔹 9. Handling missing values
Use np.nan to represent missing values and np.isnan() to detect them.
Example:
arr = np.array([1, 2, np.nan])
np.isnan(arr) # Output: [False False True]
🔹 10. Element-wise operations
NumPy supports element-wise addition, subtraction, multiplication, and division.
Example:
a = np.array([1, 2, 3])
b = np.array([4, 5, 6])
a + b # Output: [5 7 9]
💡 Pro Tip: NumPy is all about speed and efficiency. Mastering it gives you a huge edge in data manipulation and model building.
Double Tap ❤️ For MoreDear [Recruiter’s Name],
I hope this email finds you doing well. I wanted to take a moment to express my sincere gratitude for the time and consideration you have given me throughout the recruitment process for the [position] role at [company].
I understand that you must be extremely busy and receive countless applications, so I wanted to reach out and follow up on the status of my application. If it’s not too much trouble, could you kindly provide me with any updates or feedback you may have?
I want to assure you that I remain genuinely interested in the opportunity to join the team at [company] and I would be honored to discuss my qualifications further. If there are any additional materials or information you require from me, please don’t hesitate to let me know.
Thank you for your time and consideration. I appreciate the effort you put into recruiting and look forward to hearing from you soon.
Warmest regards,
(Tap to copy)