Move Function

Goal

Each function lives where its data lives; coupling between modules drops.

Before the refactoring

class Order { totalPriority() { return this.account.priority(); } }

After the refactoring

class Account { priority() { /* ... */ } }
class Order   { /* asks account directly when needed */ }

Savings

Modules become more cohesive; tests stay focused; feature-envy patterns disappear.

Note

Moving a function across modules can pull dependencies with it — confirm the new home actually has access to everything the function needs.