Answer
Razor parses .cshtml into C# classes, compiles them into temporary assemblies, and caches them. Runtime compilation is slower but flexible; precompiled views dramatically improve startup performance and CPU usage.
Quick Answer
In production, Razor views are precompiled by Roslyn at publish time — no .cshtml files needed. In development, Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation watches files and recompiles on change. The generated RazorPage class has an Execute() method that writes HTML chunks to a TextWriter using string pooling to minimize allocations.
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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