Appperfect Corp Software Engineer Interview Questions and Answers

Q1. Basic Form Validation on React Js but on a platform which doesn't have syntax highlighting. Expected best coding standards to be followed.
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Q1. React Js and JavaScript questions
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Q1. Technical questions based on situations.
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Q1. WAP to check occurrence of words in a paragraph.
Ans. 
A program to check the occurrence of words in a paragraph.
• Split the paragraph into words using space as delimiter

• Create a hashmap to store word frequencies

• Iterate through the words and update the hashmap accordingly

• Display the word frequencies
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Q2. What git command do you use incase PR build is failed
Ans. 
Use git bisect command to find the commit that caused the build failure
• Use 'git bisect start' to start the bisect process

• Mark the current commit as bad with 'git bisect bad'

• Mark a known good commit with 'git bisect good '

• Git will automatically checkout commits for testing, mark them as good or bad until the culprit commit is found
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Q1. Given an array Reverse array
Ans. 
Reverse array of strings
• Iterate through the array and swap elements from start to end

• Use two pointers, one at the beginning and one at the end, and swap elements until they meet
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Q2. Giaven a string Reverse string
Ans. 
Reverse a given string
• Use built-in functions like reverse() or loop through the string in reverse order

• Create a new string and append characters from the original string in reverse order

• Convert the string to an array of characters, reverse the array, and then join it back into a string
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Q3. Given array find sum of all elements
Ans. 
Calculate sum of all elements in a given array of strings
• Iterate through the array and convert each element to integer before adding to sum

• Handle edge cases like empty array or non-numeric elements

• Return the final sum after iterating through all elements
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Q1. Role check
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Q2. Tech stackP
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Q1. Project based questions
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Q2. AWS related questions
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Q1. It was all about java oops and basic questions
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Q1. It will related to the our project and some scenario based questions
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Q1. Salary discussion
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Basic questions on maths related parts and analysis skills

Coding questions from various Data Structure parts like linkedList stack queue

Q1. C# oops polymorphism extension methods
Ans. 
Polymorphism is a key feature of OOP in C#. Extension methods allow adding new functionality to existing types.
• Polymorphism allows objects of different classes to be treated as if they are of the same type.

• Extension methods are static methods that can be called as if they were instance methods of the extended type.

• Polymorphism and extension methods can be used together to add new behavior to existing types without modi
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Q2. Angular javascript vs typescript services components
Ans. 
Angular is a framework for building web applications using TypeScript, which is a superset of JavaScript.
• Angular provides a structure for building web applications using components, services, and modules.

• TypeScript is a statically typed language that provides better tooling and error checking than JavaScript.

• Services in Angular are used for sharing data and functionality across components.

• Components in Angular are the ...read more
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Basic aptitude way taken into account

Basic data structures and oops concept