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Physicswallah Front end Developer Interview Questions, Process, and Tips
Top Physicswallah Front end Developer Interview Questions and Answers
- Q1. In what cases will you use Promise.all
- Q2. What is memoization in react
- Q3. Promise vs promise all
Physicswallah Front end Developer Interview Experiences
2 interviews found
I appeared for an interview in Feb 2024.
(5 Questions)
- Q1. What is memoization in react
- Ans.
Memoization is a technique used to optimize performance by storing the results of expensive function calls and returning the cached result when the same inputs occur again.
Memoization helps to avoid redundant calculations by storing the results of function calls.
It can be implemented using libraries like 'memo' in React or manually by storing results in a cache.
Memoization is commonly used in React to optimize renderin...
- Q2. Promise vs promise all
- Ans.
Promise is used for asynchronous operations with a single result, while Promise.all is used for handling multiple promises simultaneously.
Promise is used for handling asynchronous operations with a single result
Promise.all is used for handling multiple promises simultaneously
Promise.all waits for all promises to resolve or any one to reject
- Q3. Minimum sum path
- Q4. React Vs Angular
- Ans.
React is a lightweight library for building user interfaces, while Angular is a full-fledged framework with more features and conventions.
React is more flexible and allows for more control over the code structure.
Angular provides more out-of-the-box features like routing, forms, and HTTP client.
React is easier to learn for beginners due to its simplicity.
Angular has a steeper learning curve but offers more built-in too...
- Q5. In what cases will you use Promise.all
- Ans.
Promise.all is used to handle multiple promises concurrently and wait for all of them to resolve.
Use Promise.all when you need to make multiple asynchronous calls and wait for all of them to complete before proceeding.
It is useful for scenarios like fetching data from multiple APIs and processing them together.
Example: Promise.all([fetch('url1'), fetch('url2')]).then(responses => { // handle responses })
(2 Questions)
- Q1. Situational questions
- Q2. Questions related to day to day work
Skills evaluated in this interview
Selected
I applied via Instahyre and was interviewed in Jul 2024. There were 2 interview rounds.
Api Call with pagination support, Card with button.
Same , Just changed the difficulties
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Front end Developer Interview Questions & Answers
K12 Techno Services
Anonymous
posted on 21 Oct 2024
I applied via Recruitment Consulltant
(1 Question)
- Q1. What is the difference between library and framework
- Ans.
A library is a collection of functions or classes that can be called by an external program, while a framework is a set of rules and guidelines that help in creating an application.
Library is used for specific functionalities, while framework provides overall structure
In libraries, the flow of control is determined by the caller, while in frameworks, the flow of control is determined by the framework itself
Examples of ...
Shubham
(3 Questions)
- Q1. Javascript questions
- Q2. Have idea how to fetch Data from an API
- Ans.
Yes, by using AJAX or Fetch API to make a request to the API endpoint and handle the response data.
Use AJAX or Fetch API to make a request to the API endpoint
Handle the response data by parsing it in JSON format
Display the fetched data on the front end as needed
- Q3. React Question basics not hard
Skills evaluated in this interview
Front end Developer Interview Questions & Answers
Extramarks Education
Anonymous
posted on 18 Jun 2024
Selected
I applied via Approached by Company and was interviewed in May 2024. There was 1 interview round.
(2 Questions)
- Q1. They have asked about my resume or working experience. how i implemented those features
- Q2. Merge 2 array and sort in ascending order in JS, use Effect Hooks, Debouncing, Throttling, about API integration, how u fetched and make faster API call.
Interview Preparation Tips
I applied via Recruitment Consulltant and was interviewed in May 2024. There was 1 interview round.
(2 Questions)
- Q1. Javascript object manipulation based coding question
- Q2. React based verbal questions
Interview Questionnaire
1 Question
- Q1. Hash Table in JavaScript Basic HTML CSS Layout React Class Components with Lifecycle Methods React Hooks
Yash Solanki
I applied via Job Portal
Medium to hard level DSA from leetcode
Medium to hard level DSA from leetcode
(1 Question)
- Q1. General HR questions.
Interview Preparation Tips
Basic numeric ability and reasoning
Easy to medium level problems of dsa
(1 Question)
- Q1. It was one and a half hour long round basically what ever your have written down on your resume they will ask you
I applied via Naukri.com and was interviewed before Aug 2023. There was 1 interview round.
(2 Questions)
- Q1. Explain about Android lifecycle
- Ans.
Android lifecycle refers to the series of states that an activity or fragment goes through from creation to destruction.
Android lifecycle includes states like onCreate, onStart, onResume, onPause, onStop, onDestroy, etc.
Activities and fragments transition between these states based on user interactions and system events.
Understanding Android lifecycle is crucial for managing resources, saving state, and handling config...
- Q2. Explain about fragment lifecycle
- Ans.
Fragment lifecycle refers to the series of events that occur in the lifespan of a fragment in an Android app.
Fragments go through various states like created, started, resumed, paused, stopped, and destroyed.
Fragment lifecycle methods include onCreate(), onCreateView(), onResume(), onPause(), onStop(), onDestroy(), etc.
Fragment lifecycle is closely tied to the hosting activity's lifecycle.
Understanding fragment lifecyc...
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Physicswallah Front end Developer Interview Process
based on 2 interviews
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Physicswallah Front end Developer Reviews and Ratings
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