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Josh Technology Frontend Engineer Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 35 questions · ~283 min
SetInterval Edge CaseMedium
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Tests understanding of closures and timing behavior in JavaScript.

javascriptJosh Technology
Build a Calculator with Pure CSS and JSMedium
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Tests ability to build an interactive UI with core HTML, CSS, and JavaScript.

javascriptcssJosh Technology
Box Sizing and Form ValidationMedium
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Tests CSS box-model understanding and practical client-side form validation approach.

Josh Technology
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2
Technical Fundamentals5 questions · ~40 min
Debounce vs ThrottleMedium
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Evaluates your understanding of event handling performance tradeoffs in the browser.

performance optimizationJosh Technology
Browser Rendering and OptimizationMedium
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Tests your knowledge of rendering internals and practical performance optimization techniques.

performanceoptimizationJosh Technology
Event Bubbling vs CapturingEasy
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Assesses your understanding of DOM event propagation and how it affects frontend behavior.

Josh Technology
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3
Behavioral & Leadership9 questions · ~73 min
React Components in MinutesMedium
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Assesses ability to communicate React component concepts clearly and concisely.

reactJosh Technology
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4
More topics1 question · ~8 min
Maintainable, Scalable CodeMedium
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Assesses your engineering practices for readability, extensibility, and team collaboration.

code qualitymaintainabilityscalabilityJosh Technology
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