CGI Group Front end Developer Interview Questions and Answers

Q1. What is event bubbling
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Q2. What is TDD and why TDD
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Q1. Construct stack using queues
Ans. 
Implement a stack using two queues
• Use two queues to simulate stack operations

• Push operation: Enqueue the element to queue1

• Pop operation: Dequeue all elements from queue1 to queue2, dequeue the last element from queue1, then swap the queues

• Top operation: Dequeue all elements from queue1 to queue2, dequeue the last element from queue1, store it, swap the queues, enqueue the stored element back to queue1, and return it

• Exa...read more
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Q2. M coloring graph
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2 question 1 easy 2 medium dsa

2 codes of dsa and mcq.

Q1. Code paring round
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Q2. Dsa question of graph
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What is HTTPS and how it work in backend creation

Q1. Tell me something about your past job
Ans. What is MVC in Website operation
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Q2. Why do you want to join us
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Average,Time Speed Distance , Stream and Boat , Proportions , SI and CI

Q1. Read the Given Sentence
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Q2. Tell the description about the topic
Ans. 
The topic is about describing a specific subject or concept in detail.
• Provide a comprehensive overview of the topic

• Include key details and characteristics

• Explain the significance and relevance of the topic

• Use examples to illustrate key points
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Java , SQL , Front end quesstion

Q1. Explain promise in javascript
Ans. 
Promises in JavaScript are objects 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() to handle success and .catch() to handle errors.

• Example: new Promise((resolve, reject) => { ... }).then(result => { ... }).catch(error =>
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Q2. HTML and CSS basic question
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Q3. Let and var difference
Ans. 
let is block scoped, var is function scoped
• let is block scoped, var is function scoped

• let can't be re-declared in the same scope, var can be

• let variables are not hoisted, var variables are hoisted
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Q4. Spread and rest operator
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Q5. Jwt and interceptor concepts
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