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Frontend Software Engineer Interview Questions

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8,918 frontend software engineer interview questions shared by candidates

xplained semantic tags, difference between div and section, usage of article, main, header, etc. Discussed HTML elements vs text. Defined and its purpose in HTML5. Difference between block, inline, and inline-block display types. Wrote code to create a table with thead, tbody, tr, td, th. -- Asked about pseudo-classes (:hover, :nth-child) and pseudo-elements (::before, ::after), with examples. Discussed how to target elements conditionally using these. --- Wrote code to find duplicates in an array: Covered hoisting in JS -- What is lazy loading and why it's used to optimize performance by loading modules only when needed, Explained encapsulation, DI,Angular lifecycle hooks Wrote a service to call an API using HttpClient:
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Frontend Developer

Interviewed at iDreamBiz

4.2★
Jul 14, 2025

xplained semantic tags, difference between div and section, usage of article, main, header, etc. Discussed HTML elements vs text. Defined and its purpose in HTML5. Difference between block, inline, and inline-block display types. Wrote code to create a table with thead, tbody, tr, td, th. -- Asked about pseudo-classes (:hover, :nth-child) and pseudo-elements (::before, ::after), with examples. Discussed how to target elements conditionally using these. --- Wrote code to find duplicates in an array: Covered hoisting in JS -- What is lazy loading and why it's used to optimize performance by loading modules only when needed, Explained encapsulation, DI,Angular lifecycle hooks Wrote a service to call an API using HttpClient:

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