Design Patterns In Python (Book)

Maybe you missed the original “Break the GC” game. It’s a mini game written in Three.js, …

No you don’t. It’s an option for you, if you think you need it. TypeScript is an extra layer to JavaScript to help ensure type safety. “Type Safety? What?” JavaScript is dynamically typed, which means that you won’t know if there are type related problems with your code until runtime. …

It doesn’t need import maps. It’s just an option in case you think you want it. For example, this example below doesn’t use import maps, but it still works. It imports the Three.js core directly from a CDN link. I.e., You also don’t need to use import maps…

Your object structure inside an application may be complicated and varied. A good example is what could be created using the Composite structure. The objects that make up the hierarchy of objects, can be anything and most likely complicated to modify as your application grows. Instead, when designing the objects…

In the Template Method pattern, you create an abstract class (template) that contains a Template Method that is a series of instructions that are a combination of abstract and hook methods. Abstract methods need to be overridden in the subclasses that extend the abstract (template) class. Hook methods normally have…

The Strategy Pattern is similar to the State Pattern, except that the client passes in the algorithm that the context should run. The algorithm should be contained within a class that implements the particular strategies interface. An application that sorts data is a good example of where you can incorporate…

Not to be confused with object state, i.e., one of more attributes that can be copied as a snapshot, the State Pattern is more concerned about changing the handle of an object’s method dynamically. This makes an object itself more dynamic and may reduce the need of many conditional statements. …

Throughout the lifecycle of an application, an objects state may change. You might want to store a copy of the current state in case of later retrieval. E.g., when writing a document, you may want to auto save the current state every 10 minutes. …

The most universal approach to installing Python is to visit the official Python download page at, https://www.python.org/downloads/ Normally this page will detect your operating system from the useragent in your browser and select which install is appropriate for you. There will be 64 and 32 bit versions for your operating…