Imagine that you have a factory, but you do not know what part of its functionality you need, and what – no.
In such cases, the necessary operations are performed only if they are needed and only once: The pattern also has another name – Chain of Command.
Decorator pattern adds additional features to an existing object dynamically.
In other words, assume that we know that there are factories that produce some kind of a product.and then describes the core of the solution to that problem, in such a way that you can use this solution a million times over, without doing it the same way twice.” – Christopher Alexander And now, we can start overview some of the listed patterns This is one of the most popular patterns.When developing web applications, it often makes sense conceptually and architecturally to allow access to only one instance of a particular class (during runtime). Example: The strategy pattern is based on algorithms.I’m getting a lot of questions about where that pattern is (I’ve even seen pattern roundups that show that blanket but link directly here).It’s not my blanket, and I This season of life has been C-R-A-Z-Y in our home.Besides the daily chaos of raising two toddler boys (one “Terrible Two” and one “Threenager”), we’ve been juggling my husband’s two jobs as well as Seminary classes (he took his heaviest load, 10 credits, this semester).