几种编程范式
1. Declarative Programming 声明式编程
- The programmer instructs the computer what to be computed 程序指示电脑计算什么
- Do not know how it works ,but you know what it does 不知道怎么工作的，但是知道做了什么
- Decouple DOM manipulation from app logic and improve the testability of code将逻辑和DOM操作解耦，改善代码的可测试性
- Improves readability of a code 提高代码可读性
2. Imperative Programming 命令式编程
- The script is basically telling the computer how to do something 脚本基本上是告诉计算机如何做某事
- Imperative phrases which change the global state of a program 改成程序状态的命令短语
- Not scalable 不可扩展
3. Object Oriented Programming 面向对象编程
- Program is defined by object which combine state and behavior 程序被包含状态和行为的对象定义
- Good for structured and modular code 适用于结构化和模块化代码
- Well suited for big projects 高度适配大型项目
4. Functional Programming 函数式编程
- Treats computations as the excution of functions and aviods changing state and mutable data 将计算作为函数的输出结果并避免状态修改和可变数据
- Eliminating side effects ,ie.e, changes in state that do not depend on the function inputs ,can make it much easier to understand and predict the behavior of a programmer 消除副作用，即不依赖函数输入状态的变化,使更容易的理解和预测函数的行为
- Emphaize using of immutable data 加强不可变数据的使用
