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Toptal Front end Developer Interview Questions and Answers
Toptal Front end Developer Interview Experiences
1 interview found
Ask Iswan
(2 Questions)
- Q1. How will you explain how ReactJS works for none technical person
- Ans.
ReactJS is a JavaScript library for building user interfaces.
ReactJS is a library used for building interactive user interfaces on the web.
It allows developers to create reusable UI components that update automatically when data changes.
React uses a virtual DOM to efficiently update the actual DOM, resulting in faster performance.
Components in React can be nested within each other to create complex UI structures.
React ...
- Q2. Explain your solution for your team member
- Ans.
I would explain my solution in a clear and concise manner, using visual aids if necessary.
Break down the problem into smaller parts
Use diagrams or flowcharts to illustrate the solution
Provide code snippets or examples to demonstrate implementation
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
Anonymous
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
I applied via LinkedIn and was interviewed in Jul 2024. There were 3 interview rounds.
20 MCQs on Aptitude & Quants, can google practice the questions
2 Questions of easy/medium level can select any language and code.
(1 Question)
- Q1. 40 MCQs on HTML/CSS and React (mainly class components)
Interview Preparation Tips
- HTML
- CSS
- React
I applied via Naukri.com and was interviewed in Jan 2024. There was 1 interview round.
General aptitude test, coding test, technical test questions
Interview Preparation Tips
I applied via Approached by Company and was interviewed in May 2022. There were 2 interview rounds.
Aptitude, technical, coding test not sufficient time
Coding you have to do 2 problems it is included in the first round
Interview Preparation Tips
you have 1:30 hrs time to complete the test
Aptitude - 20 Questions MCQ
Coding - 2 problems
Technical - 40 Questions MCQ
sumit ruhela
(1 Question)
- Q1. Completely frontend developer question session coookiess localstorage , shadow dom json and object difference event child children event
Selected
I applied via Naukri.com and was interviewed in Apr 2024. There was 1 interview round.
(5 Questions)
- Q1. Caching Strategy
- Q2. What is micro Frontend architecture
- Ans.
Micro Frontend architecture is an approach to building front-end applications by breaking them down into smaller, independently deployable units.
Allows different teams to work on separate parts of the application
Each micro frontend can be developed using different technologies
Enables incremental upgrades and updates without affecting the entire application
Can improve performance by loading only the necessary components
...
- Q3. Pure and impure pipes in angular
- Ans.
Pure pipes in Angular are stateless and do not change the input data, while impure pipes can have side effects and change the input data.
Pure pipes are used for simple transformations like formatting dates or numbers.
Impure pipes are used for more complex transformations that require state or side effects.
Pure pipes are faster and more efficient as they only run when a pure change to the input data is detected.
Impure p...
- Q4. How to make singleton services multiton
- Ans.
Singleton services can be made multiton by maintaining a map of instances with unique keys.
Create a map to store instances with unique keys
Use a factory method to retrieve instances based on keys
Ensure that only one instance is created per key
- Q5. What is dependency injection
- Ans.
Dependency injection is a design pattern where components are given their dependencies rather than creating them internally.
Allows for easier testing by injecting mock dependencies
Promotes loose coupling between components
Improves code reusability and maintainability
Examples: AngularJS, Spring Framework
Interview Preparation Tips
Skills evaluated in this interview
One coding, 40 technical mcq, 20-30 aptitude
(1 Question)
- Q1. Js, react questions
Selected
I applied via Naukri.com and was interviewed before Dec 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Angular basics questions
- Q2. Javascript basic concepts
(1 Question)
- Q1. Discussion about expected ctc
I applied via LinkedIn and was interviewed in Nov 2024. There was 1 interview round.
(2 Questions)
- Q1. Mostly js questions, not so many of angular or react.
- Q2. Like fizbuzz or things like that.
Interview Preparation Tips
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