Detailed explanation of 23 design modes (for review)
Design Patterns
-The basis of Reusable Object-Oriented Software
Recently, I saw a big man on the blog who said that the design mode was very good. So I moved the big man's blog and sorted it out. I'll review it later. First of all, I'd like to thank the big man. The original address is: Design pattern of the beaut ...
Posted by bigdaddysheikh on Fri, 20 May 2022 07:31:59 +0300
[design notes] 234
[design notes] 234
2 Strategy
brief introduction
In general shopping malls, there are many promotion modes, including normal mode, how much to return when full, and how much to discount directly. Different amounts need to be charged according to different modes.
You can use the simple factory mode to design a CashFactory, and then set s ...
Posted by Eric_Ryk on Fri, 20 May 2022 05:00:39 +0300
Adapter mode_Dark horse programmer study notes
Overview
If you go to European countries to travel, their sockets are on the far left as shown in the picture below, which are European standards. And the plug we use is on the far right of the picture below. Therefore, our laptops and mobile phones cannot be directly charged locally. So we need a socket converter. The first side of the conv ...
Posted by FD_F on Fri, 20 May 2022 03:37:43 +0300
Bridge mode of structural mode
content
Definition and Features
Structure and Implementation
schema structure
Implementation of the pattern
Application scenarios
Extensions: Used in conjunction with the Adapter Pattern
In real life, some classes have two or more dimensions of variation, such as graphics can be divided by shape, but also by color. How to design a softw ...
Posted by arbab on Thu, 19 May 2022 17:41:06 +0300
Head First design pattern: iterator pattern
text
1, Definition
The iterator pattern provides a way to sequentially access the elements of an aggregate object without exposing its internal representation.
main points:
The iterator pattern places the responsibility for swimming between elements on the iterator, not the aggregate object. This simplifies the interface and implementation of ...
Posted by Maharg105 on Thu, 19 May 2022 05:41:33 +0300
Standardize code naming to make your Dart code more pleasant to read
Click here to learn about the "Flutter Introduction and Combat" column, continuous update and systematic learning!
foreword
Good coding style is very important. Keeping consistent naming can make the code reading experience better and team collaboration more efficient. This article introduces the officially recommended naming conven ...
Posted by MBrody on Thu, 19 May 2022 02:17:31 +0300
js design pattern -- singleton pattern
What is singleton mode
Ensure that a class has only one instance and provide a global access point to access it.
To implement the singleton pattern, you need a variable to mark whether an instance has been created. If an instance has been created, the previously created instance is returned. If not, the new instance will be returned.
The implem ...
Posted by brucensal on Wed, 18 May 2022 23:02:26 +0300
On the factory mode of GOF design mode
The essence of factory model
It realizes the separation of creator and caller
The core soul of design pattern is to clarify the division of labor
1. Instantiate the object and replace new with factory method
2. Press the key to select the implementation class and create object management and control. This decouples the caller from our impleme ...
Posted by JoeZ on Wed, 18 May 2022 17:38:10 +0300
How to reuse code gracefully with JDK and Spring?
preface
Template, as the name suggests, is a fixed and standardized thing.
Template method pattern is a behavior design pattern. It defines an algorithm framework in superclass, allowing subclasses to rewrite specific steps of the algorithm without modifying the structure.
Scene problem
Suppose we are masters of a beverage shop, we need at leas ...
Posted by thekidscareya on Wed, 18 May 2022 14:59:35 +0300
Detailed explanation of factory mode of design mode
Classification of patterns
The creation pattern provides a mechanism for creating objects, which can improve flexibility and the importance of existing code
The structure pattern explains that objects and classes assemble a larger structure while maintaining the flexibility and efficiency of the structure
The behavior model is responsibl ...
Posted by gardnc on Tue, 17 May 2022 14:26:51 +0300