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Promatics Technologies Node JS Developer Interview Questions, Process, and Tips
Promatics Technologies Node JS Developer Interview Experiences
1 interview found
Selected
I applied via Walk-in and was interviewed before May 2023. There was 1 interview round.
(5 Questions)
- Q1. What is node js express js and normal ds question based on javascipt
- Q2. What is asynchorneion
- Ans.
Asynchrony is the ability of a system to handle multiple tasks concurrently without blocking the main thread.
Asynchrony allows tasks to run independently of each other, improving performance and responsiveness.
Node.js uses an event-driven, non-blocking I/O model to handle asynchronous operations.
Examples of asynchronous operations in Node.js include reading files, making network requests, and executing database queries
- Q3. What is spilt methode
- Ans.
The split() method is used to split a string into an array of substrings based on a specified separator.
The split() method takes a separator as an argument, which can be a string or a regular expression.
The method returns an array of substrings created by splitting the original string at each occurrence of the separator.
Example: 'hello world'.split(' ') will return ['hello', 'world']
- Q4. What is deep copy
- Ans.
Deep copy is a copy of an object that duplicates all of its properties and nested objects, creating a new independent copy.
Deep copy creates a new object with all properties and nested objects copied.
Changes made to the original object do not affect the deep copy.
Deep copy is often used when you need to modify an object without affecting the original.
- Q5. What is diff bw == and===
- Ans.
The '==' operator checks for equality, while the '===' operator checks for strict equality (including data type).
The '==' operator performs type coercion before comparing two values.
The '===' operator does not perform type coercion and compares both value and data type.
Example: 1 == '1' will return true, but 1 === '1' will return false.
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I applied via Referral and was interviewed before Nov 2021. There were 3 interview rounds.
(1 Question)
- Q1. Android Question with Past projects
(1 Question)
- Q1. Behavior questions and Some Project based Questions
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Algoworks Technologies
Anonymous
posted on 16 Feb 2024
Selected
I applied via Company Website and was interviewed in Jan 2024. There were 2 interview rounds.
(3 Questions)
- Q1. Hoisting and scope
- Q2. Map, reduce, filter
- Q3. Const, let and var difference
- Ans.
const, let, and var are used to declare variables in JavaScript with different scoping and mutability.
const: declares a variable with a constant value that cannot be reassigned
let: declares a block-scoped variable that can be reassigned
var: declares a function-scoped variable that can be reassigned
Create a small UI in 1 hour
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Konstant Infosolutions
Anonymous
posted on 23 Aug 2024
(1 Question)
- Q1. Basic questions
(1 Question)
- Q1. Basic Questions about your projects
(1 Question)
- Q1. Salary discussion
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Konstant Infosolutions
Anonymous
posted on 25 Aug 2024
Selected
I applied via Company Website and was interviewed before Aug 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Basic question about the post like node.js developer then question will be related to node.js
- Q2. Some question from your project which you have mentions in your cv or resume.
(2 Questions)
- Q1. Basic Question about security.
- Q2. Some baisc of array questions or string
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Hidden Brains InfoTech
Anonymous
posted on 14 Apr 2024
Selected
I applied via Job Portal and was interviewed before Apr 2023. There were 2 interview rounds.
(1 Question)
- Q1. They arrange with under experienced interviewer any one can pass through it
(1 Question)
- Q1. HR round will honey bath one you as you treat as a king
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OpenXcell Technolabs
Aman shaikh
posted on 18 Sep 2024
I applied via Campus Placement
Basic aptitude and technical questions
(2 Questions)
- Q1. Python questions basic
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OpenXcell Technolabs
Anonymous
posted on 19 Jul 2024
(2 Questions)
- Q1. Node JS details
- Q2. Javascript curring
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(1 Question)
- Q1. Implement tail f
Interview Preparation Tips
I applied via Referral and was interviewed in Feb 2024. There were 3 interview rounds.
Implement tail -f command
(2 Questions)
- Q1. Kafka partitions
- Q2. Elasticsearch queries
(2 Questions)
- Q1. Why Browserstack?
- Ans.
Browserstack is a popular cloud-based cross-browser testing tool used by developers worldwide.
Provides access to a wide range of browsers and devices for testing
Allows for parallel testing to save time and increase efficiency
Integrates with popular testing frameworks like Selenium and Appium
Offers features like screenshots, video recordings, and debugging tools
Used by companies like Microsoft, Twitter, and Airbnb for t
- Q2. Any challenge you faced at current company?
- Ans.
Yes, I faced a challenge in integrating a new third-party API with our existing system.
Had to understand the documentation of the API thoroughly
Encountered compatibility issues with our system
Worked closely with the API provider to troubleshoot and resolve issues
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