September 2016
Intermediate to advanced
775 pages
18h 22m
English
Content preview from Python: Master the Art of Design PatternsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Use cases
The Prototype pattern is useful when we have an existing object and we want to create an exact copy of it. A copy of an object is usually required when we know that parts of the object will be modified but we want to keep the original object untouched. In such cases, it doesn't make sense to recreate the original object from scratch [j.mp/protpat].
Another case where Prototype comes in handy is when we want to duplicate a complex object. By duplicating a complex object, we can think of an object that is populated from a database and has references to other objects that are also populated from a database. It is a lot of effort to create an object clone by querying the database(s) multiple times again. Using Prototype for such cases is ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.