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Backend Developer

Foxberry Technologies

1 rounds | 1 Coding problems

Sahil Pramod Sonawane

Experienced | May 2025

Rejected

Interview preparation journey

Journey

I was preparing for a backend role in Node.js by strengthening my JavaScript fundamentals, both in theory and coding practice. Alongside, I am focusing on Node.js core concepts, building RESTful APIs, and working with MongoDB for database operations. I am combining hands-on projects with targeted practice to ensure I can handle real-world backend development tasks efficiently.

Preparation

Topics: JavaScript fundamentals, Node.js core concepts, MongoDB, RESTful APIs, and basic DSA

Application process

Where: Coding Ninjas Placement Cell

Eligibility: NA, (Salary package: 3-3.5LPA)

Interview rounds

Round

Medium

Face to Face

Duration

Interview date13 May 2025

Coding problem1

1. Check if a String is a Palindrome in JavaScript

Write a JavaScript program that takes a string input from the user and checks whether it is a palindrome. A palindrome is a string that reads the same forwards and backwards. The program should ignore case and non-alphanumeric characters when performing the check and output whether the string is a palindrome or not.

Problem approach

Create a function named isPalindrome that takes a string as a parameter.
Initialize two variables: start = 0 and end = string.length - 1 to point to the first and last characters of the string.
Declare a boolean variable isPalindrome = true.
Use a loop to iterate through the string, comparing characters from both ends.
Inside the loop, if the characters at start and end are not equal, set isPalindrome = false and break the loop.
After each comparison, increment start and decrement end.
Once the loop finishes, return the value of isPalindrome.