I am looking at some common ways of defining classes (Constructor Pattern in Book by Addy Osmani).
我正在寻找一些定义类的常用方法（Addy Osmani的Book中的Constructor Pattern）。
2 main ways I see:
我看到的两种主要方式：
-
Simple Prototypes:
简单原型：
function Person(name) { this.name = name; } Person.prototype.getName = function() { return this.name; } -
ES5
Object.create,Object.definePropertiesES5 Object.create，Object.defineProperties
I am wondering, why might I even consider the ES5 way which appears to be alot more complicated? Is there any advantages? Maybe the only main advantage is having read-only properties like some strongly typed language?
我想知道，为什么我甚至可以考虑看起来更复杂的ES5方式呢？有什么好处吗？也许唯一的主要优点是拥有像某些强类型语言这样的只读属性？
1 个解决方案
#1
4
Object.defineProperties is only needed if you want those properties to have particular attributes, e.g. non-enumerable, read-only, or with getters or setter functions.
只有在您希望这些属性具有特定属性时才需要Object.defineProperties，例如不可枚举，只读或带有getter或setter函数。
There's no need to use it for normal classes and their methods, where the "simple prototype" method you describe is perfectly adequate.
没有必要将它用于普通类及其方法，其中您描述的“简单原型”方法是完全足够的。
#1
4
Object.defineProperties is only needed if you want those properties to have particular attributes, e.g. non-enumerable, read-only, or with getters or setter functions.
只有在您希望这些属性具有特定属性时才需要Object.defineProperties，例如不可枚举，只读或带有getter或setter函数。
There's no need to use it for normal classes and their methods, where the "simple prototype" method you describe is perfectly adequate.
没有必要将它用于普通类及其方法，其中您描述的“简单原型”方法是完全足够的。