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What is a difference between free and destroy?
Delphi Interview Questions
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What is a difference between free and destroy?
If you write your own code to instantiate objects, you are responsible for disposing of them as well. Every object inherits a Destroy method (called a destructor) from TObject. To destroy an object, however, you should call the Free method (also inherited from TObject), because Free checks for a nil reference before calling Destroy. For example,
Employee.Free;
destroys the Employee object and deallocates its memory.
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