Fullstack Developer

Tip 1: Use React to build a responsive frontend and Node.js with Express to create clean, RESTful CRUD APIs.
Tip 2: Break the problem into frontend and backend milestones.
Tip 3: Use a consistent folder structure and follow RESTful API conventions.
Tip 4: Keep the UI clean and responsive, with proper validation and error handling.

Design and implement a data structure for Least Recently Used (LRU) cache to support the following operations:

1. get(key) - Return the value of the key if the key exists in the cache, otherwise return -1.

2. put(key, value), Insert the value in the cache if the key is not already present or update the value of the given key if the key is already present. When the cache reaches its capacity, it should invalidate the least recently used item before inserting the new item.

You will be given ‘Q’ queries. Each query will belong to one of these two types:

Type 0: for get(key) operation.
Type 1: for put(key, value) operation.

Note :

1. The cache is initialized with a capacity (the maximum number of unique keys it can hold at a time).

2. Access to an item or key is defined as a get or a put operation on the key. The least recently used key is the one with the oldest access time.

What is the difference between a Stack and a Queue? Where would you prefer one over the other? (Learn)

What is the time complexity of searching for an element in a Binary Search Tree, and under what conditions can it degrade?

How is a priority queue implemented using a heap, and what are the time complexities of insertion and deletion?

What is the difference between controlled and uncontrolled components in React?

What is the event loop in Node.js, and how does it handle asynchronous operations?

• Tell me about yourself and your career journey so far.
• Why are you looking for a change?
• Where do you see yourself in the next 3–5 years?
• Can you describe a challenging situation in your previous role and how you handled it?
• Have you ever had a conflict with a team member? How did you resolve it?
• How do you ensure effective communication when working in a remote or hybrid setup?