Ixigo.com Interview Questions and Answers

Q1. Types of primitives in JS
Ans. 
Primitives in JS are data types that are not objects and are immutable.
• Types of primitives in JS include string, number, boolean, null, undefined, and symbol.

• Primitives are passed by value, not by reference.

• Examples: 'hello' (string), 42 (number), true (boolean), null, undefined, Symbol('foo')
Answered by AI
Add your answer
Q2. Difference between inline and block elements
Ans. 
Inline elements do not start on a new line and only take up as much width as necessary, while block elements start on a new line and take up the full width available.
• Inline elements do not force a new line to start and only take up as much width as necessary (e.g. <span>, <a>, <strong>).

• Block elements always start on a new line and take up the full width available (e.g. <div>, <p>, <h1&...read more
Answered by AI
Add your answer
Q3. Techniques to optimise list rendering? List virtualisation
Ans. 
List virtualisation optimises rendering by only rendering items that are currently visible on the screen.
• Use virtual scrolling to render only the visible items in a list

• Implement windowing techniques to dynamically load and unload items as the user scrolls

• Utilize libraries like React Virtualized or Angular CDK Virtual Scroll for efficient list rendering
Answered by AI
Add your answer
Q4. Output question: typeof Symbol
Ans. 
The output of typeof Symbol is 'symbol', indicating its unique data type in JavaScript.
• Symbols are a primitive data type introduced in ES6.

• They are unique and immutable, making them ideal for object property keys.

• Example: const sym = Symbol('description'); typeof sym; // 'symbol'

• Symbols can prevent name clashes in object properties.
Answered by AI
View 1 more answer
Q5. Difference between pseudo elements and pseudo classes
Ans. 
Pseudo elements are used to style specific parts of an element, while pseudo classes are used to style an element based on its state or position.
• Pseudo elements are denoted by :: before the element name, like ::before or ::after

• Pseudo classes are denoted by a single colon before the class name, like :hover or :active

• Pseudo elements are used to style parts of an element that do not exist in the DOM, like adding content ...read more
Answered by AI
Add your answer

Q1. Can you provide a self-introduction?
Ans. 
Experienced marketing professional with a passion for digital innovation and brand development.
• Over 10 years of experience in marketing roles

• Specialize in digital marketing strategies

• Successfully launched several brand campaigns

• Passionate about staying up-to-date with industry trends
Answered by AI
Add your answer
Q2. Technical questions
Add your answer

Q1. Technical questions
Add your answer

Q1. Around asynchronous programming specifically in ios, design patterns, memory management?
Add your answer

Q1. Create a counter component with button to start and stop timer every second and reset button.
Ans. 
Create a counter component with start, stop, and reset buttons for a timer.
• Create a state variable to store the current count

• Use setInterval to increment the count every second when the timer is started

• Add buttons to start, stop, and reset the timer

• Implement functions for starting, stopping, and resetting the timer
Answered by AI
Add your answer
Q2. Javascript questions on promises and async await
Add your answer

Q1. Array vs Linkelist
Add your answer
Q2. Linklist vs Array
Add your answer

Q1. Categorical enconding types
Add your answer
Q2. Assumptions of Linear regression? Randonforesrt? information gain?
Ans. 
Assumptions and characteristics of linear regression, random forest, and information gain.
• Assumptions of linear regression include linearity, independence, homoscedasticity, and normality of residuals.

• Random forest is an ensemble learning method that builds multiple decision trees and merges them together to improve performance.

• Information gain is a measure used in decision trees to determine the relevance of a feature...read more
Answered by AI
Add your answer

Guestimates, sql questions

Sql questions geeks for geeks