How to use factory function? Summary of factory function instance usage

The so-called factory function means that these built-in functions are all class objects. When you call them, you actually create a class instance. This article mainly introduces the JavaScript factory function. Friends who need it can refer to it. When learning jQuery, we often see the concept of "factory function", so what exactly is a "factory function"? Let's take a look at the concept, "The so-called factory function means that these built-in functions are all class objects. When you call them, you actually create a class instance." This means that when I call this function, I actually create an object using the class and then return the object. Since Javascript itself is not a strict object-oriented language (does not contain classes), in fact, Javascript does not have a strict "factory function", but in Javascript, we can use functions to simulate classes. We first create an object through the new keyword, and obj is equivalent to an instance of Object. We instantiate an object through the class, then give the object corresponding attributes, and finally return the object. We can create objects by calling this function. In this case, it actually works

1. Detailed sample code for factory functions in JavaScript

#Introduction: The so-called factory function means that these built-in functions are class objects. When you call them, you actually create a class instance. . This article mainly introduces JavaScript factory functions. Friends in need can refer to

2. Newly written class factory functions

Introduction: Newly written class factory function, please give me PHP code

3. Learning tutorial on built-in functions and built-in methods of collections in Python

Introduction: This article mainly This tutorial introduces the built-in functions and built-in methods of collections in Python, including factory functions and methods that are only used for variable collections. Friends in need can refer to it

4. Detailed explanation of the object factory function and constructor of the javascript design pattern_Basic knowledge

Introduction: This article mainly introduces the object factory function and constructor of the javascript design pattern Detailed explanation of constructors. Using object literals or dynamically adding new members to empty objects is the simplest and easiest way to create objects. In addition to these two commonly used methods of object creation, JavaScript also provides other methods to create objects. You need Friends can refer to

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