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InnovationM Reactjs Developer Interview Questions, Process, and Tips
Top InnovationM Reactjs Developer Interview Questions and Answers
- Q1. What are closures? Explain with example
- Q2. What is CallStack? What is Memory Heap?
- Q3. What is Redux? What are it's features?
InnovationM Reactjs Developer Interview Experiences
2 interviews found
I applied via AmbitionBox
(2 Questions)
- Q1. What are features of React JS?
- Ans.
React JS is a JavaScript library for building user interfaces.
Virtual DOM for efficient updates
Component-based architecture for reusability
JSX syntax for easy rendering
Unidirectional data flow for predictable state management
Server-side rendering for SEO optimization
- Q2. What is Redux? What are it's features?
- Ans.
Redux is a predictable state container for JavaScript apps.
Redux is a state management library for JavaScript applications.
It provides a centralized store to manage the state of an application.
Redux follows a unidirectional data flow pattern.
It allows for easy debugging and testing of an application's state.
Redux can be used with React, Angular, Vue, and other JavaScript frameworks.
(2 Questions)
- Q1. What are closures? Explain with example
- Ans.
Closures are functions that have access to variables in their outer scope.
Closures are created when a function is defined inside another function.
The inner function has access to the outer function's variables, even after the outer function has returned.
Closures can be used to create private variables and functions.
Example: function outer() { let x = 10; function inner() { console.log(x); } return inner; } const closur
- Q2. What is CallStack? What is Memory Heap?
- Ans.
CallStack is a data structure that stores function calls in a stack. Memory Heap is a region of memory where objects are stored.
CallStack is a LIFO data structure that keeps track of function calls.
Memory Heap is a large region of memory where objects are allocated.
Variables and function calls are stored in CallStack while objects are stored in Memory Heap.
When a function is called, it is added to the top of the CallSt...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Jan 2022. There were 2 interview rounds.
(1 Question)
- Q1. Explain redux workflow
- Ans.
Redux is a state management library for JavaScript applications.
Redux stores the entire state of the application in a single store.
Actions are dispatched to update the state in the store.
Reducers are pure functions that take the current state and an action, and return a new state.
Components can subscribe to the store to receive updates when the state changes.
Interview Preparation Tips
Skills evaluated in this interview
Reactjs Developer Jobs at InnovationM
Top trending discussions
Interview questions from similar companies
I applied via Naukri.com and was interviewed in Oct 2023. There were 2 interview rounds.
(3 Questions)
- Q1. Asked json web tokean authentication, authorisation. architecture of your project.
- Q2. Coding question- create crud app. Given array of objects. Render list in table. Do edit, delete, sort list on object property.
- Ans.
Create a CRUD app to render, edit, delete, and sort a list of objects in a table.
Create a React component to render a table with data from the array of objects.
Implement functions for editing and deleting objects from the list.
Add functionality to sort the list based on object properties.
Use state and props to manage data and re-render the table when changes occur.
- Q3. Difference bw rem, em, px. React hooks- useEffect, life cycle methods. use cases of hooks.
- Ans.
rem, em, px are units of measurement in CSS. React hooks like useEffect replace lifecycle methods for side effects.
rem: relative to the font-size of the root element (html). Example: 1rem = 16px
em: relative to the font-size of the element. Example: 2em = 32px if font-size is 16px
px: fixed-size units. Example: font-size: 16px
useEffect: replaces componentDidMount, componentDidUpdate, and componentWillUnmount in class com...
Interview Preparation Tips
Skills evaluated in this interview
Software Engineer Interview Questions & Answers
Josh Technology Group
Anonymous
posted on 16 Sep 2021
I appeared for an interview before Sep 2020.
(1 Question)
Round duration - 60 mins
Round difficulty - Medium
- Q1.
Railway Seat Berth Determination
Given a railway seat number represented as an integer, determine if it is a valid seat number and identify its berth type. Possible berth types include lower berth, middle...
- Ans.
Given a railway seat number, determine if it is valid and identify its berth type.
Parse input integer 't' for number of test cases
For each test case, check if seat number is valid (1 <= N <= 100)
Identify berth type based on seat number and output the result
Possible berth types are Lower, Middle, Upper, Side Lower, and Side Upper
(1 Question)
Round duration - 90 mins
Round difficulty - Hard
First they asked me to introduce myself then they started questioning on oops concept from basic to advance level such as inheritance, polymorphism, abstraction, exception handling , STL etc. Next they started questioning on data structures. They asked me the logic of “how to find the middle of a linked list”.
- Q1.
Matrix Symmetry Check
You are provided with a square matrix. Your task is to return
trueif the matrix is symmetric; otherwise, returnfalse.A symmetric matrix is characterized by its transpose being eq...
- Ans.
Check if a square matrix is symmetric by comparing it with its transpose.
Iterate through the matrix and compare each element with its corresponding element in the transpose
If any pair of elements do not match, return false immediately
If all pairs match, return true at the end
Interview Preparation Tips
Tip 1 : Clear the basic concepts of data structure and OOPs.
Tip 2 : Use coding ninja platform and Hackerearth for practice on coding skills.
Tip 3 : Use Geeks For Geeks for interview preparation.
Tip 1: Make your resume short and try to make it of one page only.
Tip 2: Add relevant keywords
Skills evaluated in this interview
Software Engineer Interview Questions & Answers
Josh Technology Group
Anonymous
posted on 28 Jul 2021
I applied via Campus Placement and was interviewed before Jul 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Check if binary tree is balanced or not.
- Ans.
Check if binary tree is balanced or not.
A balanced binary tree has the height of left and right subtrees differ by at most 1.
Recursively check the height of left and right subtrees and compare.
Use a helper function to calculate the height of a subtree.
Time complexity: O(nlogn) for a balanced tree, O(n^2) for a skewed tree.
- Q2. Detect loops in linked list.
- Ans.
Detect loops in a linked list.
Use two pointers, one moving at a faster pace than the other.
If there is a loop, the faster pointer will eventually catch up to the slower one.
To detect the start of the loop, reset one pointer to the head and move both pointers at the same pace.
Interview Preparation Tips
Skills evaluated in this interview
I applied via Referral and was interviewed before Aug 2021. There were 2 interview rounds.
General topics like mathe, English, social etc
Interview Preparation Tips
- Python
- general
It represents the eligibility of person and thinking process ,view of thoughts
(1 Question)
- Q1. We cannot judge people to atonce chance
Skills ,fast typing , experienced ,new ideas
(1 Question)
- Q1. All the knowledge of technical work and word
Deeply study case and make a point to make attractive
Interview Preparation Tips
They totally select you on the basis of aptitude only
(1 Question)
- Q1. It is also based on aptitude
Interview Preparation Tips
Software Engineer Interview Questions & Answers
Indus Valley Partners
Anonymous
posted on 23 Nov 2024
Selected
I applied via LinkedIn and was interviewed before Nov 2023. There were 2 interview rounds.
MCQ questions on OS, JS and HTML
Basic Questions from resume. String/Array DSA questions
I applied via Campus Placement and was interviewed before Jan 2024. There were 2 interview rounds.
5 questions written coding test
Basic question on string and array manipulation
(1 Question)
- Q1. 2nd smallest number
- Ans.
Find the 2nd smallest number in an array of integers.
Sort the array in ascending order
Return the second element in the sorted array
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InnovationM Reactjs Developer Interview Process
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