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Codeac is an Automated Code Review Tool that monitors your technical debt, helps you improve your code quality, teaches best practices to your developers, and helps you save time in Code Reviews.
10/12/2025
Shadow variable declarations are a subtle but common source of confusion in codebases.
When a local variable uses the same name as one in an outer scope, it shadows the original, making the global value inaccessible and the code harder to read.
Clear naming and avoiding shadowing keep your code predictable, maintainable, and easier for others (and future you!) to understand.
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