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What is Ahead-of-Time (AOT) Compilation in Angular?

Junior Angular
Quick Answer AOT compiles Angular templates at build time on the developer's machine, not at runtime in the browser. Benefits: faster app startup (browser runs pre-compiled code), smaller bundle size (Angular compiler not included in the bundle), template errors caught early, and better security (HTML/JS injection not possible since templates are pre-compiled). Default in production builds.

Answer

AOT compiles Angular templates during build time for faster startup, smaller bundles, earlier error detection, and better security.

AOT is the default for production builds in modern Angular.

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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

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