Top 29
Prep plan
Updated weekly · Last refresh Sep 28
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HackerRank Frontend Engineer Interview Questions

The questions to prepare for a HackerRank Frontend Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
System DesignStart here. 17 questions · ~143 min
Five-Star Rating UIMedium

Evaluates your ability to design interactive, stateful UI components.

HHackerRank
Google Sheets-Like System DesignHard

Assesses your ability to design a complex, collaborative spreadsheet-like frontend system.

designHHackerRank
Google Sheets-Like Browser ArchitectureHard

Tests ability to design scalable UI architecture for spreadsheet-style interactions.

state managementarchitectureHHackerRank
Complex Form State ValidationHard

Evaluates approach to managing validation complexity and user-friendly error handling.

state managementHHackerRank
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2
Coding12 questions · ~101 min
Format Dates ListMedium

Assesses your ability to implement correct data transformation logic.

HHackerRank
Global State With Custom HookMedium

Assesses ability to design state management abstractions in React.

reactstate managementHHackerRank
Functional vs Class ComponentsEasy

Evaluates React component knowledge and appropriate usage decisions.

javascriptreactHHackerRank
JavaScript Event Loop for UIMedium

Assesses understanding of the event loop and its effect on responsiveness.

javascriptui performanceHHackerRank
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