Classic pattern font
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How to change the font in Niannian's account How to change the font in Niannian's account28Jun2024
Click the [Toolbar] icon in the upper right corner of the page. Click the [Material Management] menu in the toolbar. Click the [Font] menu on the material management page to proceed to the next step. Finally choose your favorite font.
JavaScript design pattern classic simple factory pattern code example20Mar2017
The simple factory pattern uses a method to determine which class instance to create, and these instances often have the same interface. This pattern is mainly used when the type to be instantiated is not determined at compile time, but at execution time. decision situation. To put it simply, it's like the beverage machine in the company's pantry. You want coffee or milk depending on which button you press. The simple factory pattern is also very useful when creating ajax objects. Previously I wrote a library that handles asynchronous ajax nesting. The address is https://github.com/AlloyTeam/DanceRequest. This library provides...
Detailed explanation of the classic JavaScript design pattern singleton pattern20Mar2017
Peter Seibel, author of "Practical Common Lisp" once said that if you need a pattern, something is wrong. The problem he refers to is that because of the inherent flaws of language, he has to find and summarize a general solution. Whether it is a weakly typed or strongly typed language, a static or dynamic language, an imperative or a declarative language, every language has its inherent advantages and disadvantages. A Jamaican athlete has some advantages in sprinting and even boxing, but lacks in practicing yoga. Warlocks and Shadow Priests can easily become excellent supports, but an enemy Mage flying around the map with Macon on his back will be a little...
Detailed explanation of the classic JavaScript design pattern Strategy Pattern20Mar2017
The meaning of the strategy pattern is to define a series of algorithms, encapsulate them one by one, and make them interchangeable. A small example can make it clear to us. Recall the animate method in jquery. $( div ).animate( {'left: 200px'}, 1000, 'linear' ); // Uniform motion $( div ).animate( {'left: 200px'}, 1000 , 'cubic' ); //The two codes for cubic easing both make the div move at 1000ms..
16May2016
The Observer pattern, also called the Observer pattern, is one of the 23 software design patterns proposed by the GoF. The Observer pattern is one of the behavioral patterns. Its function is to automatically notify other associated objects and automatically refresh the object state when the state of an object changes.
Classic case of java facade pattern10Mar2017
Facade mode * Simply put, it reduces the coupling between classes and uses a Facade class to hold references to the original class. The frequency of its use is actually very high * It is somewhat similar to the static proxy in implementation. The difference is that the appearance mode can hold references to multiple entity objects and combine them to implement business functions.
16May2016
The definition of the proxy pattern is to hand over access to an object to another proxy object for operation. Next, this article will introduce you to the proxy mode of JavaScript design patterns. Friends who are interested can learn together.
