JavaScript Interview Question Companies Paying $50K+ Ask (Portfolio Balance Coding Challenge)

In this video, we solve a JavaScript coding interview question similar to the kind companies paying $50K+ to developers often use during technical assessments. The challenge involves working with a portfolio object that contains multiple accounts and transactions. Your tasks are to: • Calculate the total net balance across all accounts • Find the largest single transaction in the portfolio Example dataset used in this challenge: const portfolio = { account1: { balance: 1000, transactions: [100, -50, 200] }, account2: { balance: 500, transactions: [-100, 50, -25] }, account3: { balance: 1200, transactions: [300, -200, 150] } }; To solve this problem, developers must understand: JavaScript objects Array methods like reduce Iterating through nested data structures Problem-solving logic used in real technical interviews These are the kinds of coding challenges used to evaluate frontend and backend developers during hiring processes for high-paying roles. This video is part of Day 5 of our Fullstack Mentorship Program, where students practice real coding problems while learning to build production-level applications such as: • AI Fintech Applications • WhatsApp Clone • Real Estate Platform with Escrow System If you're preparing for software engineering interviews or improving your JavaScript problem-solving skills, this series will help you practice real-world coding questions. Subscribe and follow the series for more JavaScript coding challenges and interview questions. javascript interview question javascript coding interview $50k developer interview question javascript coding challenge software engineer interview question javascript problem solving frontend developer interview question javascript object coding problem technical interview javascript javascript reduce method example javascript interview question javascript coding challenge coding interview questions software engineer interview frontend developer interview javascript exercises javascript reduce method javascript objects and arrays coding challenge solution technical interview preparation developer assessment test #JavaScript #CodingInterview #CodingChallenge #SoftwareEngineer #FullstackDeveloper #TechInterview #LearnToCode #Programming