Remove unnecessary null/undefined checks when you already have sufficient validation in place, and use proper type guards instead of type assertions for better null safety. When you've already validated that a value is truthy or non-null, avoid redundant checks that add noise without providing additional safety. Similarly, prefer type guard functions over type assertions to maintain proper null safety. Examples of improvements: - If you have `if (match)` then `const [, year, month, date] = match` is sufficient - no need for `match ?? []` - Instead of checking both `response instanceof UndiciResponse && !(response instanceof Response)`, determine which single check provides the necessary validation - Replace type assertions like `(newModule as Record)` with proper type guard functions that can handle null/undefined cases safely This approach reduces code complexity while maintaining robust null handling, making your code both cleaner and safer.