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CoreFlex Solutions Front end Developer Interview Questions and Answers
CoreFlex Solutions Front end Developer Interview Experiences
1 interview found
shital khangar
Selected
I applied via Naukri.com
(3 Questions)
- Q1. What is use for usememo
- Ans.
useMemo is a React hook used for memoizing expensive computations and optimizing performance.
useMemo is used to memoize the result of a function or computation.
It takes a function and an array of dependencies as arguments.
The function is only re-executed if any of the dependencies change.
It returns the memoized value, which can be used in the component.
It is useful for optimizing performance by avoiding unnecessary re-...
- Q2. What use for Useeffect
- Ans.
The useEffect hook is used in React to perform side effects in functional components.
It is used to handle side effects like data fetching, subscriptions, or manually changing the DOM.
It runs after every render and can be used to replace lifecycle methods like componentDidMount and componentDidUpdate.
It takes two arguments: a function that contains the side effect logic, and an optional array of dependencies.
The functio...
- Q3. What is semantic elements
- Ans.
Semantic elements are HTML tags that clearly define the content they contain for both browsers and developers.
Semantic elements provide meaning to the content they enclose, making it easier for search engines to index and for screen readers to interpret.
Examples of semantic elements include <header>, <footer>, <article>, <section>, <nav>, <aside>, <main>, <figure>, <fi...
(1 Question)
- Q1. What is use for usememo
- Ans.
useMemo is a React hook used to memoize the result of a function and optimize performance.
useMemo is used to cache the result of a function and only recompute it when its dependencies change.
It is useful for optimizing expensive calculations or preventing unnecessary re-rendering of components.
Example: useMemo(() => calculateExpensiveValue(a, b), [a, b])
The memoized value is returned by useMemo and can be used in the c...
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
Front end Developer Interview Questions & Answers
Ideas2IT Technologies
Anonymous
posted on 25 Jul 2024
(2 Questions)
- Q1. Debouncing in react
- Ans.
Debouncing in React is a technique used to limit the number of times a function is called in a specified time frame.
Debouncing helps in improving performance by reducing unnecessary function calls.
It is commonly used in scenarios like search bars where we want to wait for user to finish typing before making an API call.
Example: Using lodash debounce function to delay API call until user stops typing.
- Q2. Throttling in react
- Ans.
Throttling in React helps limit the number of times a function is called within a specified time frame.
Throttling is used to improve performance by reducing the number of times a function is executed.
It is commonly used in scenarios like handling scroll events or input changes.
Example: Using lodash's throttle function to limit the rate of execution of a function.
Basic in array and function and es6 concepts
Skills evaluated in this interview
Selected
I applied via Company Website and was interviewed before Jul 2022. There were 5 interview rounds.
A screening test on javascript was conducted.
(1 Question)
- Q1. Technical interview question was base on your role. Oops concept is must. Html, css, react questions are asked in depth
I was asked to build a weather app using react in 24 hours, where the APIs where provided. Unit test cases was optional.
(1 Question)
- Q1. Normal HR questions. Some technical questions were also asked.
Interview Preparation Tips
I appeared for an interview in Jul 2021.
(1 Question)
Round duration - 60 minutes
Round difficulty - Easy
It was a different and unique kind of mcq and coding test that I was gone through. It was like a chat application where Bot was sending some mcq question and I had to select the correct answer, sometimes when my answer goes wrong it gave another chance on the same time. All the mcq questions were based on HTML, CSS and JavaScript. And the last question was a JavaScript coding question in which we have to find the most occurred word in the given sentence.
- Q1.
Most Frequent Non-Banned Word Problem Statement
Given a paragraph consisting of letters in both lowercase and uppercase, spaces, and punctuation, along with a list of banned words, your task is to find th...
- Ans.
Find the most frequent word in a paragraph that is not in a list of banned words.
Split the paragraph into words and convert them to uppercase for case-insensitivity.
Count the frequency of each word, excluding banned words.
Return the word with the highest frequency in uppercase.
(1 Question)
Round duration - 45 minutes
Round difficulty - Easy
Discussion on Projects that i have specified in my resume and also the interviewer asked question based on JavaScript concept along with few easy kind of DSA problem.
- Q1.
Palindrome String Validation
Determine if a given string 'S' is a palindrome, considering only alphanumeric characters and ignoring spaces and symbols.
Note:
The string 'S' should be evaluated in a case... - Ans.
Validate if a given string is a palindrome after removing special characters, spaces, and converting to lowercase.
Remove special characters and spaces from the input string
Convert the string to lowercase
Check if the modified string is equal to its reverse to determine if it's a palindrome
Interview Preparation Tips
Tip 1 : If currently in college do some development along with the DSA. Some good projects (1-2 is enough) will give your resume higher chances to get shortlisted.
Tip 2 : Be good with your JavaScript skills.
Tip 3 : HTML/CSS should be proficient.
Tip 1 : Put at least 2 nice projects.
Tip 2 : Should be to the point.
Skills evaluated in this interview
Nitin Rothe
Interview Questionnaire
1 Question
- Q1. PHP, OOPS,Mysql
Interview Preparation Tips
Software Developer Interview Questions & Answers
Ideas2IT Technologies
priya .R
posted on 7 May 2021
I applied via Naukri.com and was interviewed in Apr 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Basics from the technologies mentioned in my resume
Interview Preparation Tips
I appeared for an interview in Jan 2021.
Interview Questionnaire
1 Question
- Q1. Basics of respective technology.
Interview Preparation Tips
Easy to moderate apt test here
Easy to moderate coding questions on array
(2 Questions)
- Q1. Indexing, sqls, queries, triggers
- Q2. Php versions, features, explain code
(1 Question)
- Q1. General discussion based on the experience , salary
Selected
I applied via Approached by Company and was interviewed before Feb 2023. There was 1 interview round.
(2 Questions)
- Q1. System architecture
- Q2. Dict ,list and other questions
Software Developer Interview Questions & Answers
Agilysys Technologies India
Neela Kandan
posted on 4 Jan 2025
I applied via Company Website and was interviewed before Jan 2024. There were 2 interview rounds.
Online technical aptitude test
(1 Question)
- Q1. Related oops and old company projects
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