Coding Interview Resources
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This channel contains the free resources and solution of coding problems which are usually asked in the interviews.

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Top 3 coding platforms every developer should know๐Ÿ‘‡

1. LeetCode: The best platform for improving skills and preparing for technical interviews.
2. CodeChef: With over 2M learners, this platform offers top courses and tech questions.
3. StackOverflow: An online community where you can find solutions to any coding question.

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Here are the 50 JavaScript interview questions for 2024

1. What is JavaScript?
2. What are the data types in JavaScript?
3. What is the difference between null and undefined?
4. Explain the concept of hoisting in JavaScript.
5. What is a closure in JavaScript?
6. What is the difference between โ€œ==โ€ and โ€œ===โ€ operators in JavaScript?
7. Explain the concept of prototypal inheritance in JavaScript.
8. What are the different ways to define a function in JavaScript?
9. How does event delegation work in JavaScript?
10. What is the purpose of the โ€œthisโ€ keyword in JavaScript?
11. What are the different ways to create objects in JavaScript?
12. Explain the concept of callback functions in JavaScript.
13. What is event bubbling and event capturing in JavaScript?
14. What is the purpose of the โ€œbindโ€ method in JavaScript?
15. Explain the concept of AJAX in JavaScript.
16. What is the โ€œtypeofโ€ operator used for?
17. How does JavaScript handle errors and exceptions?
18. Explain the concept of event-driven programming in JavaScript.
19. What is the purpose of the โ€œasyncโ€ and โ€œawaitโ€ keywords in JavaScript?
20. What is the difference between a deep copy and a shallow copy in JavaScript?
21. How does JavaScript handle memory management?
22. Explain the concept of event loop in JavaScript.
23. What is the purpose of the โ€œmapโ€ method in JavaScript?
24. What is a promise in JavaScript?
25. How do you handle errors in promises?
26. Explain the concept of currying in JavaScript.
27. What is the purpose of the โ€œreduceโ€ method in JavaScript?
28. What is the difference between โ€œnullโ€ and โ€œundefinedโ€ in JavaScript?
29. What are the different types of loops in JavaScript?
30. What is the difference between โ€œlet,โ€ โ€œconst,โ€ and โ€œvarโ€ in JavaScript?
31. Explain the concept of event propagation in JavaScript.
32. What are the different ways to manipulate the DOM in JavaScript?
33. What is the purpose of the โ€œlocalStorageโ€ and โ€œsessionStorageโ€ objects?
34. How do you handle asynchronous operations in JavaScript?
35. What is the purpose of the โ€œforEachโ€ method in JavaScript?
36. What are the differences between โ€œletโ€ and โ€œvarโ€ in JavaScript?
37. Explain the concept of memoization in JavaScript.
38. What is the purpose of the โ€œspliceโ€ method in JavaScript arrays?
39. What is a generator function in JavaScript?
40. How does JavaScript handle variable scoping?
41. What is the purpose of the โ€œsplitโ€ method in JavaScript?
42. What is the difference between a deep clone and a shallow clone of an object?
43. Explain the concept of the event delegation pattern.
44. What are the differences between JavaScriptโ€™s โ€œnullโ€ and โ€œundefinedโ€?
45. What is the purpose of the โ€œargumentsโ€ object in JavaScript?
46. What are the different ways to define methods in JavaScript objects?
47. Explain the concept of memoization and its benefits.
48. What is the difference between โ€œsliceโ€ and โ€œspliceโ€ in JavaScript arrays?
49. What is the purpose of the โ€œapplyโ€ and โ€œcallโ€ methods in JavaScript?
50. Explain the concept of the event loop in JavaScript and how it handles asynchronous operations.
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5 Sites to Level Up Your Coding Skills ๐Ÿ‘จโ€๐Ÿ’ป๐Ÿ‘ฉโ€๐Ÿ’ป

๐Ÿ”น leetcode.com
๐Ÿ”น hackerrank.com
๐Ÿ”น w3schools.com
๐Ÿ”น datasimplifier.com
๐Ÿ”น hackerearth.com
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Best cold email technique to network with the recruiter for the future opportunities ๐Ÿ‘‡๐Ÿ‘‡

Interview Mail Tips-

You can achieve this by sending thoughtful emails.

โœ… ๐—”๐—ฝ๐—ฝ๐—น๐˜†๐—ถ๐—ป๐—ด ๐—ณ๐—ผ๐—ฟ ๐—ท๐—ผ๐—ฏ ๐—˜๐—บ๐—ฎ๐—ถ๐—น:

๐—ฆ๐˜‚๐—ฏ๐—ท๐—ฒ๐—ฐ๐˜: Application for [Job Title] - [Your Name]

Dear [Hiring Manager's Name],

I hope this message finds you well. I am writing to express my interest in the [Job Title] position at [Company Name] that I recently came across. I believe my skills and experience align well with the requirements of the role.

With a background in [Relevant Skills/Experience], I am excited about the opportunity to contribute to [Company Name]'s [specific project/department/goal], and I am confident in my ability to make a positive impact. I have attached my resume for your consideration.

I would appreciate the chance to discuss how my background and expertise could benefit your team. Please let me know if there is a convenient time for a call or a meeting.

Thank you for considering my application. I look forward to the opportunity to speak with you.

Best regards,
[Your Name]


โœ… ๐—™๐—ผ๐—น๐—น๐—ผ๐˜„-๐—จ๐—ฝ ๐—˜๐—บ๐—ฎ๐—ถ๐—น:

๐—ฆ๐˜‚๐—ฏ๐—ท๐—ฒ๐—ฐ๐˜: Follow-Up on My Interview

Hi [Hiring Manager's Name],

I hope you're doing well. I wanted to follow up on the interview we had for the [Job Title] position at [Company Name]. I'm really excited about the opportunity and would love to hear about the next steps in the process.

Looking forward to your response.

Best regards,
[Your Name]

โœ… ๐—ฅ๐—ฒ๐—ท๐—ฒ๐—ฐ๐˜๐—ถ๐—ผ๐—ป ๐—˜๐—บ๐—ฎ๐—ถ๐—น:

๐—ฆ๐˜‚๐—ฏ๐—ท๐—ฒ๐—ฐ๐˜: Appreciation and Future Consideration

Hi [Hiring Manager's Name],

I hope this message finds you well. I wanted to express my gratitude for considering me for the [Job Title] position. Although I didn't make it to the next round, I'm thankful for the chance to learn about [Company Name]. I look forward to potentially crossing paths again in the future.

Thank you once again.

Best regards,
[Your Name]

โœ… ๐—”๐—ฐ๐—ฐ๐—ฒ๐—ฝ๐˜๐—ฎ๐—ป๐—ฐ๐—ฒ ๐—˜๐—บ๐—ฎ๐—ถ๐—น:

๐—ฆ๐˜‚๐—ฏ๐—ท๐—ฒ๐—ฐ๐˜: Accepting the [Job Title] Position

Hello [Hiring Manager's Name],

I hope you're doing well. I wanted to formally accept the offer for the [Job Title] position at [Company Name]. I'm really excited about joining the team and contributing to [Company Name]'s success. Please let me know the next steps and any additional information you need from my end.

Thank you and looking forward to starting on [Start Date].

Best regards,
[Your Name]


โœ… ๐—ฆ๐—ฎ๐—น๐—ฎ๐—ฟ๐˜† ๐—ก๐—ฒ๐—ด๐—ผ๐˜๐—ถ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—˜๐—บ๐—ฎ๐—ถ๐—น:

๐—ฆ๐˜‚๐—ฏ๐—ท๐—ฒ๐—ฐ๐˜: Salary Discussion for [Job Title] Position

Hello [Hiring Manager's Name],

I hope this message finds you well. I'm excited about the offer for the [Job Title] role at [Company Name]. I would like to discuss the compensation package to ensure that it aligns with my skills and experience. Could we set up a time to talk about this further?

Thank you and looking forward to your response.

Best regards,
[Your Name]


(Tap to copy)

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Here is how to send LinkedIn Referral message to get interview calls from top companies ๐Ÿ’ฏ๐Ÿ‘‡

Hi [Name],
There is an opening for Front-End Developer and I would like to share my resume for that.
If you can do refer that would be great. Check my profile once if you think you can consider me for the role. Iโ€™ll forward my resume to you.
Also, Iโ€™m serving notice period and can join early LWD is
29th October.
Total exp - 2.8 YR

Thanks


(Tap to copy)

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https://topmate.io/coding/886874

If you're a job seeker, these well structured document DSA resources will help you to know and learn all the real time DSA & OOPS Interview questions with their exact answer. folks who are having 0-4+ years of experience have cracked the interview using this guide!

Please use the above link to avail them!๐Ÿ‘†

NOTE: -Most people hoard resources without actually opening them even once! The reason for keeping a small price for these resources is to ensure that you value the content available inside this and encourage you to make the best out of it.

Hope this helps in your job search journey... All the best!๐Ÿ‘โœŒ๏ธ
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20 Coding Patterns.pdf
4.1 MB
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How to prepare for coding interview in 2024 ๐Ÿ‘‡๐Ÿ‘‡

1. Master Data Structures and Algorithms: Make sure you have a solid understanding of common data structures (such as arrays, linked lists, trees, graphs, etc.) and algorithms (sorting, searching, dynamic programming, etc.). Practice implementing them in your preferred programming language.

2. Practice Coding Problems: Solve coding problems on platforms like LeetCode, HackerRank, or CodeSignal. Focus on a variety of problem types to improve your problem-solving skills.

3. Review System Design Concepts: Understand the basics of system design principles and practice designing scalable systems. Resources like Grokking the System Design Interview can be helpful.

4. Learn the Latest Technologies: Stay updated with the latest technologies and trends in the industry. Familiarize yourself with popular frameworks, libraries, and tools that are commonly used in software development.

5. Mock Interviews: Practice mock interviews with friends, mentors, or through online platforms to simulate the interview experience. This will help you get comfortable with coding under pressure and receiving feedback.

6. Stay Consistent: Set aside dedicated time each day to practice coding problems and review concepts. Consistency is key to improving your skills over time.

7. Stay Calm and Confident: Remember that interviews are not just about technical skills but also about how you communicate and approach problem-solving. Stay calm, confident, and be prepared to explain your thought process during the interview.

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Common Data Structures and Algorithms (DSA) Interview questions ๐Ÿ‘‡๐Ÿ‘‡

1. Array Manipulation:
- Implement a function to find the maximum subarray sum within a given array.
- Write code to rotate an array to the right by k steps.

2. String Manipulation:
- Given two strings, determine if one is a permutation of the other.
- Implement a function to reverse a string in-place.

3. Linked Lists:
- Write code to reverse a linked list.
- Implement a function to detect if a linked list has a cycle.

4. Sorting and Searching:
- Implement the quicksort algorithm in Python.
- Write code to perform binary search on a sorted array.

5. Trees and Graphs:
- Implement a depth-first search (DFS) algorithm for a binary tree.
- Write code to find the shortest path between two nodes in a graph using breadth-first search (BFS).

6. Dynamic Programming:
- Solve the classic "Fibonacci sequence" problem using dynamic programming.
- Implement the "coin change" problem to find the minimum number of coins required to make a given amount of change.

7. Miscellaneous:
- Implement a stack using arrays or linked lists.
- Write code to check if a given number is prime.

You can check these amazing resources for DSA Preparation

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Top 5 Coding Challenge Platforms for Programmers ๐Ÿ‘ฉโ€๐Ÿ’ป๐Ÿš€

1. LeetCode
   - URL: https://leetcode.com
   - Description: Enhance problem-solving skills with a vast collection of coding challenges on LeetCode.

2. HackerRank
   - URL: https://www.hackerrank.com
   - Description: HackerRank offers diverse coding challenges for algorithm, data structure, and language proficiency improvement.

3. CodeSignal
   - URL: https://codesignal.com
   - Description: CodeSignal provides coding challenges and assessments to enhance coding skills for interviews and practice.

4. Codewars
   - URL: https://www.codewars.com
   - Description: Codewars engages developers in creative problem-solving through kata challenges, fostering skill development.

5. Exercism
   - URL: https://exercism.io
   - Description: Exercism offers coding exercises in various languages, providing mentorship and community support.

You can check these amazing resources for DSA Preparation

Free Resources: https://t.me/free4unow_backup

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Common Programming Interview Questions

How do you reverse a string?
How do you determine if a string is a palindrome?
How do you calculate the number of numerical digits in a string?
How do you find the count for the occurrence of a particular character in a string?
How do you find the non-matching characters in a string?
How do you find out if the two given strings are anagrams?
How do you calculate the number of vowels and consonants in a string?
How do you total all of the matching integer elements in an array?
How do you reverse an array?
How do you find the maximum element in an array?
How do you sort an array of integers in ascending order?
How do you print a Fibonacci sequence using recursion?
How do you calculate the sum of two integers?
How do you find the average of numbers in a list?
How do you check if an integer is even or odd?
How do you find the middle element of a linked list?
How do you remove a loop in a linked list?
How do you merge two sorted linked lists?
How do you implement binary search to find an element in a sorted array?
How do you print a binary tree in vertical order?

Conceptual Coding Interview Questions

What is a data structure?
What is an array?
What is a linked list?
What is the difference between an array and a linked list?
What is LIFO?
What is FIFO?
What is a stack?
What are binary trees?
What are binary search trees?
What is object-oriented programming?
What is the purpose of a loop in programming?
What is a conditional statement?
What is debugging?
What is recursion?
What are the differences between linear and non-linear data structures?


General Coding Interview Questions

What programming languages do you have experience working with?
Describe a time you faced a challenge in a project you were working on and how you overcame it.
Walk me through a project youโ€™re currently or have recently worked on.
Give an example of a project you worked on where you had to learn a new programming language or technology. How did you go about learning it?
How do you ensure your code is readable by other developers?
What are your interests outside of programming?
How do you keep your skills sharp and up to date?
How do you collaborate on projects with non-technical team members?
Tell me about a time when you had to explain a complex technical concept to a non-technical team member.
How do you get started on a new coding project?

You can check these resources for Coding interview Preparation

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Thanks for the amazing response. Here are the answers to each question ๐Ÿ‘‡๐Ÿ‘‡

1. How do you reverse a string?
Example:

   def reverse_string(s):
return s[::-1]

print(reverse_string("hello")) # Output: "olleh"

2. How do you determine if a string is a palindrome?
Example:

   def is_palindrome(s):
return s == s[::-1]

print(is_palindrome("radar")) # Output: True

3. How do you calculate the number of numerical digits in a string?
Example:

   def count_digits(s):
return sum(1 for char in s if char.isdigit())

print(count_digits("abc123def456")) # Output: 6
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Free Resources To Crack Coding Interviews
๐Ÿ‘‡๐Ÿ‘‡

Coding Interview Prep FREE CERTIFIED COURSE

https://www.freecodecamp.org/learn/coding-interview-prep/#take-home-projects

Python Interview Questions and Answers

https://t.me/dsabooks/75

Beginner's guide for DSA

https://www.geeksforgeeks.org/the-ultimate-beginners-guide-for-dsa/amp/

Cracking the coding interview FREE BOOK

https://www.pdfdrive.com/cracking-the-coding-interview-189-programming-questions-and-solutions-d175292720.html

DSA Interview Questions and Answers

https://t.me/crackingthecodinginterview/77

Cracking the Coding interview: Learn 5 Essential Patterns
[4.5 star ratings out of 5]

https://bit.ly/3GUBk56

Data Science Interview Questions and Answers

https://t.me/datasciencefun/958

Java Interview Questions with Answers

https://t.me/Curiousprogrammer/106

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Here is a list of Important interview questions

SQL INTERVIEW QUESTIONS WITH IMPORTANT TOPICS
๐Ÿ‘‡๐Ÿ‘‡
https://t.me/sqlspecialist/426

Data Analyst Interview Questions
๐Ÿ‘‡๐Ÿ‘‡
https://t.me/DataAnalystInterview/69

Python Interview Questions and Answers
๐Ÿ‘‡๐Ÿ‘‡
https://t.me/dsabooks/96

Data Science Interview Questions
๐Ÿ‘‡๐Ÿ‘‡
https://t.me/datasciencefun/1058?single

Advanced Power BI Interview Questions
๐Ÿ‘‡๐Ÿ‘‡
https://t.me/sqlspecialist/422

DSA INTERVIEW QUESTIONS
๐Ÿ‘‡๐Ÿ‘‡
https://t.me/crackingthecodinginterview/77

Use Chat GPT to prepare for your next INTERVIEW
๐Ÿ‘‡๐Ÿ‘‡
https://t.me/getjobss/1483

ENJOY LEARNING ๐Ÿ‘๐Ÿ‘
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