Actively identify and eliminate code duplication in all its forms to improve maintainability and reduce bugs. This includes removing redundant conditional checks, extracting common functionality into reusable functions, and avoiding component or logic duplication.

Common patterns to watch for:

Example of redundant conditional elimination:

// Before: redundant check
{!singleFilter && (
    <div className="ActionFilter-footer">
        {!singleFilter && (  // โŒ Already checked above
            <SomeComponent />
        )}
    </div>
)}

// After: clean structure
{!singleFilter && (
    <div className="ActionFilter-footer">
        <SomeComponent />  // โœ… No redundant check
    </div>
)}

Example of extracting duplicated logic:

// Before: duplicated except for dismissKey
const billingPeriodEnd = values.billing?.billing_period?.current_period_end?.format('YYYY-MM-DD')
// ... identical logic with different dismissKey

// After: extract to function
const handleDismissal = (dismissKey: string) => {
    const billingPeriodEnd = values.billing?.billing_period?.current_period_end?.format('YYYY-MM-DD')
    // ... shared logic
}

Always prefer reusing existing implementations over creating new ones, and extract common patterns into shared utilities when the same logic appears multiple times.