Answer
Web Workers allow CPU-heavy tasks to run in background threads, preventing the main thread from blocking. Essential for large apps needing image processing, analytics, or real-time data operations.
Quick Answer
Web Workers enable true parallelism for CPU-bound tasks without blocking the UI. In large apps: offload image processing, PDF generation, large data transformation, crypto operations. Communicate via postMessage(). Shared Workers allow multiple tabs to share one worker. Workers improve perceived performance — the page stays responsive during heavy computation.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ