Code Brew Labs React Js Frontend Developer Interview Questions and Answers

Q1. DS Algo, Backend and DB
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Q2. Stack(DS) question and DB based questions
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Q3. Scaling (Horizontal, Vertical) with use cases
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Scaling refers to increasing capacity of a system. Horizontal scaling adds more machines, while vertical scaling adds more resources to a machine.
• Horizontal scaling involves adding more machines to a system to increase capacity

• Vertical scaling involves adding more resources to a machine to increase capacity

• Use cases for horizontal scaling include handling increased traffic or adding redundancy

• Use cases for vertical sca...read more
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Easy to medium leetcode questions

Simple question on maths

Q1. Explain OOPS concept
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OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPS focuses on creating objects that interact with each other to solve complex problems

• Key principles include encapsulation, inheritance, polymorphism, and abstraction

• Encapsulation ensures that the internal state of an object is hidden from the outside world

• Inheritance allows a class to inherit...read more
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Q2. Coding array questions
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Q1. Oops concept Js related output questions
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It was mostly on JavaScript

Q1. Focused on react
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Q1. Brief about project
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Cover topics like closures, classes, functions

Q1. Explain call bind apply
Ans. 
Call, bind, and apply are methods used to manipulate the value of 'this' in JavaScript functions.
• Call: Invokes a function with a specified 'this' value and arguments provided individually.

• Example: func.call(thisArg, arg1, arg2)

• Bind: Creates a new function that, when called, has a specified 'this' value and arguments provided one by one.

• Example: var newFunc = func.bind(thisArg, arg1, arg2)

• Apply: Invokes a function with ...read more
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Q2. Explain closures
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Closures are functions that have access to variables from their containing scope even after the scope has closed.
• Closures allow functions to access variables from their outer function even after the outer function has finished executing.

• They help in maintaining state in asynchronous operations.

• Closures are commonly used in event handlers and callbacks.
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Aptitude test was easy but difficult

Q1. Technical questions linked list
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Q2. Array binary search Dp
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