Posts tagged “compiler”

The TypeScript compiler team deprecated const enums because they break isolated module compilation and cause runtime errors in modern build pipelines. Learn the technical reasons, migration strategies to union types and const objects, and why the deprecation protects codebases from silent failures.

The verbatimModuleSyntax flag eliminates elision guessing, but it breaks mixed import statements, re-exports, and side-effect modules in production codebases. Here's what actually fails and how to fix it.

The React Compiler automates memoization but doesn't eliminate manual optimization. Learn exactly what it replaces, what it misses, and when you still need useMemo.