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Unicommerce Esolutions UI Engineer Interview Questions and Answers
7 Interview questions
ES6 features like object destructuring, arrow functions, array methods
Object destructuring allows for easy extraction of values from objects
Arrow functions provide a concise syntax for writing functions
Array.filter() allows for filtering of elements based on a condition
Array.reduce() allows for reducing an array to a single value
Array.indexOf() returns the index of the first occurrence of a specified element
async/await in script tag is used to load external scripts asynchronously without blocking the page.
async/await allows scripts to be loaded asynchronously without blocking the page
It is useful for loading external scripts that may take time to load
It improves page performance by not blocking the rendering of the page
It is supported in modern browsers
CSS Box model is a design concept that describes how elements are displayed on a webpage.
Every HTML element is a rectangular box
The box has content, padding, border, and margin
Width and height of the box are determined by content, padding, and border
Margin is the space outside the border
Box-sizing property can be used to change the box model
Pseudo classes are keywords used in CSS to select and style elements based on their state or position in the document.
Pseudo classes start with a colon (:) followed by the keyword
They are used to style elements based on their state, such as :hover, :active, :focus
They can also be used to select elements based on their position in the document, such as :first-child, :last-child
Pseudo classes can be combined with ot...
Use CSS to set margin to auto for horizontal centering and text-align center for vertical centering.
Set the parent div's display property to flex and justify-content to center
Set the child div's margin property to auto
Alternatively, set the parent div's text-align property to center and child div's display property to inline-block
Data can be transferred between components in Angular using @Input and @Output decorators.
Use @Input decorator to pass data from parent to child component
Use @Output decorator to emit events from child to parent component
Use EventEmitter to emit custom events
Use ViewChild to access child component's properties and methods
Var, let, const are used to declare variables in JavaScript. 'use strict' enables strict mode.
Var is function-scoped and can be redeclared. Let and const are block-scoped and cannot be redeclared.
Let allows reassignment while const does not.
'use strict' enables strict mode which enforces stricter rules and better error handling.
Example: var x = 10; let y = 20; const z = 30;
Example: 'use strict';
Unicommerce Esolutions UI Engineer Interview Experiences
1 interview found
I appeared for an interview in Dec 2021.
(7 Questions)
- Q1. Describe CSS Box model
- Ans.
CSS Box model is a design concept that describes how elements are displayed on a webpage.
Every HTML element is a rectangular box
The box has content, padding, border, and margin
Width and height of the box are determined by content, padding, and border
Margin is the space outside the border
Box-sizing property can be used to change the box model
- Q2. What are pseudo classes
- Ans.
Pseudo classes are keywords used in CSS to select and style elements based on their state or position in the document.
Pseudo classes start with a colon (:) followed by the keyword
They are used to style elements based on their state, such as :hover, :active, :focus
They can also be used to select elements based on their position in the document, such as :first-child, :last-child
Pseudo classes can be combined with other s...
- Q3. Purpose of async, await in script tag
- Ans.
async/await in script tag is used to load external scripts asynchronously without blocking the page.
async/await allows scripts to be loaded asynchronously without blocking the page
It is useful for loading external scripts that may take time to load
It improves page performance by not blocking the rendering of the page
It is supported in modern browsers
- Q4. Angular routing, angular lifecycle
- Q5. How would you center align div inside div
- Ans.
Use CSS to set margin to auto for horizontal centering and text-align center for vertical centering.
Set the parent div's display property to flex and justify-content to center
Set the child div's margin property to auto
Alternatively, set the parent div's text-align property to center and child div's display property to inline-block
- Q6. GIve and describe examples of ES 6 features like object destructuring, arrow fxns, array.filter/reduce/indexOf etc.
- Ans.
ES6 features like object destructuring, arrow functions, array methods
Object destructuring allows for easy extraction of values from objects
Arrow functions provide a concise syntax for writing functions
Array.filter() allows for filtering of elements based on a condition
Array.reduce() allows for reducing an array to a single value
Array.indexOf() returns the index of the first occurrence of a specified element
- Q7. Var, let, const difference? 'use strict' ?
- Ans.
Var, let, const are used to declare variables in JavaScript. 'use strict' enables strict mode.
Var is function-scoped and can be redeclared. Let and const are block-scoped and cannot be redeclared.
Let allows reassignment while const does not.
'use strict' enables strict mode which enforces stricter rules and better error handling.
Example: var x = 10; let y = 20; const z = 30;
Example: 'use strict';
(3 Questions)
- Q1. Angular routing, angular services
- Q2. Angular lifecycle, ViewChild
- Q3. How to transfer data between components in Angular
- Ans.
Data can be transferred between components in Angular using @Input and @Output decorators.
Use @Input decorator to pass data from parent to child component
Use @Output decorator to emit events from child to parent component
Use EventEmitter to emit custom events
Use ViewChild to access child component's properties and methods
Interview Preparation Tips
- Angular
- html
- css
- Es6
- scss
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
Interview Questionnaire
1 Question
- Q1. System Design and Ds and algo questions
(1 Question)
- Q1. Design and code a zoo management system.
- Ans.
A zoo management system to track animals, enclosures, staff, and visitor information.
Create classes for animals, enclosures, staff, and visitors
Implement functions for adding, updating, and deleting records
Include features for scheduling feeding times, cleaning enclosures, and managing staff shifts
Standard DSA questions
(1 Question)
- Q1. Standard HR stuff.
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in Oct 2022. There were 6 interview rounds.
4 Coding Questions Leetcode Level Medium to Hard. Had to solve it within 1.5 hours.
Was able to solve 2 questions - One hard and one Medium. Hadn't enough time to solve all.
(2 Questions)
- Q1. DSA based round. Was asked to write 3 APIs based on the the given n-ary tree.
- Q2. Questions based on Path, end node, best path, etc.
(1 Question)
- Q1. System Design round : Was asked to design RDBMS for the given problem.
(1 Question)
- Q1. HM Round : Mostly behavioral based around Twilio Magic Values
(1 Question)
- Q1. Bar Raiser Round : Taken by a director. Was asked behavioral questions again.
Interview Preparation Tips
(1 Question)
- Q1. They asked to design a database table
- Ans.
Design a database table for managing user accounts in a web application.
Table Name: Users
Columns: id (INT, Primary Key), username (VARCHAR), password (VARCHAR), email (VARCHAR), created_at (TIMESTAMP)
Indexes: Create an index on username for faster lookups.
Constraints: Ensure email is unique and validate password strength.
Low level Design Problem in Java
(1 Question)
- Q1. Data Structures - Graph Problem DFS
System Design with few details
Selected
I appeared for an interview in Oct 2024, where I was asked the following questions.
- Q1. What is the DOM ?
- Q2. What is SSR?
Selected
I appeared for an interview before Jun 2024, where I was asked the following questions.
- Q1. LLD one question Parking lot system
- Q2. Queue related basic questions
- Q3. Basic .net core questions
I applied via Telegram and was interviewed in Dec 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Tell me about yourself
- Q2. What is the job culture of zopsmart
- Ans.
The job culture at Zopsmart is collaborative, innovative, and fast-paced.
Collaborative work environment where team members support and help each other
Emphasis on innovation and creativity in problem-solving
Fast-paced atmosphere with opportunities for growth and learning
Open communication and feedback encouraged
Diverse and inclusive workplace culture
Medium level leetcode problem
Senior Software Engineer Interview Questions & Answers
Zopsmart Technology
Anonymous
posted on 18 Mar 2024
(1 Question)
- Q1. DS Algo type questions, string manipulation etc was asked and explored with more detailed questions
(1 Question)
- Q1. In depth android, kotlin discussions and high level mapping questions
(1 Question)
- Q1. General managerial questions and working agreements type discussion
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Unicommerce Esolutions Interviews By Designations
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