Improving Code Quality - Session 36: "Tautology is a tautology" is a tautology

Simply extracting logic into a separate function may not sufficiently improve code readability. For example, a name like shouldShowNotificationDot tells you 'what it does,' but doesn't provide information about 'under what condition.'

To increase the Information Content of code, extracted functions need more specific names. By using names that capture specific conditions, like hasAnyUnreadMessage or hasAnyUnreadTask, you can immediately grasp what state the logic is checking without having to look inside the function.

This approach provides the following benefits.

• Improved readability: The context becomes clearer when reading the code as natural language.
• Stronger information transfer: You can understand the specific business logic just by looking at the code to the right of the = sign.
• Easier maintenance: Since the intent of the logic is clear, mistakes can be reduced when modifying the code.