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Reuse

Imagine building a Web site with thousands of pages and a copy of the header on each page. Sometime during the life of a successful Web site, changes will be wanted or needed. The developers must go in and change the header code on every page. Obviously this is not a position in which you want to find yourself.

Code reuse has many benefits, one of the most important of which occurs when you need to change code that is viewed on many pages. Other obvious benefits include using code that is already written, tested, and debugged.


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