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Deloitte Senior Front end Developer Interview Questions, Process, and Tips
Top Deloitte Senior Front end Developer Interview Questions and Answers
- Q1. What are various things available in flex? What is hoisting? What are function expressions?
- Q2. What features of HTML have you used?
- Q3. What is flex in CSS?
Deloitte Senior Front end Developer Interview Experiences
2 interviews found
Anonymous
(7 Questions)
- Q1. Css flexbox and grid
- Q2. Pagination on scroll
- Ans.
Implementing pagination on scroll allows for loading more content as the user reaches the bottom of the page.
Use a scroll event listener to detect when the user has reached the bottom of the page
Make an API call to fetch more data when the bottom is reached
Append the new data to the existing content on the page
- Q3. Immediately invoked fn and anonymous fn
- Ans.
Immediately invoked function expressions (IIFE) are functions that are executed immediately after they are created.
IIFE is defined and invoked at the same time using parentheses at the end of the function declaration.
Anonymous functions do not have a name and can be used as IIFE by wrapping them in parentheses.
IIFE is commonly used to create a private scope for variables and functions.
- Q4. What are closures
- Ans.
Closures are functions that have access to variables from their outer scope even after the outer function has finished executing.
Closures allow functions to access variables from their parent function even after the parent function has returned
They help in creating private variables and functions in JavaScript
Closures are commonly used in event handlers and callbacks
- Q5. What is promise? explain
- Ans.
A promise is an object representing the eventual completion or failure of an asynchronous operation.
Promises are used to handle asynchronous operations in JavaScript.
They can be in one of three states: pending, fulfilled, or rejected.
Promises can be chained using .then() method to handle success and failure callbacks.
Example: Fetch API returns a promise when making an HTTP request.
- Q6. What is lazy loading -explain
- Ans.
Lazy loading is a technique used in web development to defer loading non-essential resources until they are needed.
Lazy loading helps improve page load times by only loading resources when they are required.
It is commonly used for images, videos, and other media files on a webpage.
Lazy loading can be implemented using JavaScript libraries like Intersection Observer or by using native browser features like loading='lazy
- Q7. Media query and css selectors
Skills evaluated in this interview
I applied via Approached by Company and was interviewed in Jul 2023. There was 1 interview round.
(5 Questions)
- Q1. Tell me about yourself in terms of journey with your technical skills
- Q2. What do you know about Angular and what features have you used in your project?
- Q3. What features of HTML have you used?
- Ans.
I have used various features of HTML including semantic elements, forms, multimedia, and canvas.
Semantic elements like <header>, <footer>, <nav>, <article>, <section>
Forms with input types like text, email, password, radio buttons, checkboxes, and submit buttons
Multimedia elements like <img>, <audio>, <video>
Canvas for drawing graphics and animations
- Q4. What is flex in CSS?
- Ans.
Flex in CSS is a layout module that allows elements to align and distribute space within a container.
Flexbox is used for creating flexible and responsive layouts.
It allows for easy alignment and distribution of elements within a container.
Flex properties include flex-direction, justify-content, align-items, and flex-grow.
- Q5. What are various things available in flex? What is hoisting? What are function expressions?
- Ans.
Flex is a CSS layout model that allows responsive and flexible design. Hoisting is a JavaScript behavior where variable and function declarations are moved to the top of their scope. Function expressions are anonymous functions assigned to variables.
Flex is used for creating responsive and flexible layouts in CSS.
Hoisting in JavaScript moves variable and function declarations to the top of their scope.
Function expressi...
Interview Preparation Tips
- HTML
- CSS
- Javascript
- Angular
Skills evaluated in this interview
Interview questions from similar companies
Sangeeta Kasat
(1 Question)
- Q1. All about technical questions for SAP Spartacus
(1 Question)
- Q1. Salary discussion
Suchandra Das
Selected
I applied via Naukri.com and was interviewed in Jun 2024. There were 3 interview rounds.
It was a hacker coding test mostly javascript questions
(3 Questions)
- Q1. React advance concept
- Q2. Context api how to use that
- Ans.
Context API is a feature in React that allows sharing data between components without having to pass props manually.
Create a context using createContext() method
Use the Provider component to wrap the components that need access to the context
Access the context data using the useContext() hook within the consuming components
- Q3. Higher order component
(3 Questions)
- Q1. Mainly introduction, how do you manage a project
- Q2. How to debug a code
- Ans.
Debugging a code involves identifying and fixing errors in the code to ensure it runs correctly.
Use console.log() statements to print out values and check for errors
Utilize browser developer tools to inspect elements and debug JavaScript
Step through the code using breakpoints to identify the source of the issue
Review error messages and stack traces to pinpoint the problem
Consider using tools like linters and debuggers
- Q3. How to get employee details using group by
- Ans.
Employee details can be retrieved using group by clause in SQL.
Use GROUP BY clause in SQL to group employee details based on a specific column
Aggregate functions like COUNT, SUM, AVG can be used with GROUP BY to get summarized employee details
Example: SELECT department, COUNT(*) as total_employees FROM employees GROUP BY department
Skills evaluated in this interview
Senior Front end Developer Interview Questions & Answers
Capgemini
Rajan Mehta
posted on 17 Jul 2024
(2 Questions)
- Q1. Output questions on JavaScript.(Array, hoisting, event)
- Q2. Questions on React and Redux
I was interviewed before Aug 2021.
(1 Question)
- Q1. Basic previous project technical details JavaScript let const var difference Hoisting Promises Async await
Interview Preparation Tips
I was interviewed in Jul 2024.
First round is online assessment. Where we have multiple choice questions related to angular, css. Html, javascript
(2 Questions)
- Q1. AOT. JIT compilers, Pipes, Services, Singleton component
- Q2. Have you developed website for physically challenged ppl, accessibility
- Ans.
Yes, I have experience developing websites for physically challenged individuals with a focus on accessibility.
Implemented keyboard navigation for users with mobility impairments
Utilized ARIA roles and attributes to improve screen reader compatibility
Ensured color contrast and text size met WCAG standards
Tested websites with assistive technologies like screen readers and voice recognition software
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed in Jun 2024. There were 2 interview rounds.
(1 Question)
- Q1. Interviewer asked about depth in React Js and JavaScript. JavaScript questions - Hoisting, implementation of closure, difference between call, bind & apply. Logic implementation of suggestions list in sea...
(1 Question)
- Q1. He asked about both technical and non technical related questions. Previous organisation works. What i have faced difficult y in previous organisation. And some scenario based questions.
(2 Questions)
- Q1. How are you doing?
- Q2. What do you do in your life?
(2 Questions)
- Q1. No problem with this
- Q2. The only way you could be
Interview Preparation Tips
Senior Front end Developer Interview Questions & Answers
Accenture
Arpita Singh
posted on 8 Oct 2024
(1 Question)
- Q1. General intro to the hr person
(1 Question)
- Q1. JS related questions
(1 Question)
- Q1. JS related questions
(1 Question)
- Q1. JS related questions
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Deloitte Senior Front end Developer Interview Process
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