HCLTech

Global IT services and consulting company.

4 Rounds ~21 Days Medium
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The Interview Loop

Recruiter Screen (30 min)

Standard fit check, behavioral questions, and resume overview.

Technical Loop (3-4 Rounds)

Deep dive into domain knowledge, coding, and system design.

Interview Question Bank

Frontend Engineer • Coding • medium

Implement a polyfill for Promise.all().

#Promises #Asynchronous Programming #Polyfills
Practice
Frontend Engineer • Coding • medium

Write a custom debounce function from scratch that includes an 'immediate' execution flag.

#Closures #Timers #Performance Optimization
Practice
Frontend Engineer • Coding • easy

Explain closures in JavaScript. Write a function that generates a private counter that cannot be accessed directly from the outside.

#Closures #Encapsulation #Scope
Practice
Frontend Engineer • Coding • hard

Write a function to deep clone a nested JavaScript object. How would you handle cyclic dependencies?

#Recursion #Data Structures #Memory Management
Practice
Frontend Engineer • Coding • medium

Write a function to curry an existing function that takes 'n' arguments.

#Functional Programming #Currying #Closures
Practice
Frontend Engineer • Technical • medium

Explain the JavaScript Event Loop. What will be the output of a script containing synchronous logs, setTimeout, and Promise.then() calls?

#Event Loop #Microtasks #Macrotasks
Practice
Frontend Engineer • Technical • medium

Explain prototype chaining in JavaScript. How would you implement class inheritance using ES5 syntax?

#Prototypes #OOP #ES5
Practice

Difficulty Radar

Based on recent AI-sourced data.

Meet Your Interviewers

The "Standard" Interviewer

Senior Engineer

Focuses on core competencies, system constraints, and clear communication.

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Unwritten Rules

Think Out Loud

Always explain your thought process before writing code or drawing architecture.

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