从哪个版本，IE可以支持Object.create（null）？ [英] From which version, IE can support Object.create(null)?

问题描述

您可以通过多种方式在JavaScript中创建对象：

You can create an object in JavaScript in many ways:

// creates an object which makes the Object, prototype of data.
var data1 = new Object(); 

// Object literal notation; Object still is the prototype of data2.
var data2 = {}; 

// anotherObject is now the prototype of data3.
var data3 = Object.create(anotherObject); 

/* data3 is an object which can be verified bye typeof operator, 
   however, it now has no prototype and you can 
   build everything from scratch. */
var data3 = Object.create(null); 

但我不知道哪个版本的IE支持最后一种方法，即 Object.create（null）方法？

But I don't know which versions of IE support the last method, i.e. Object.create(null) method?

推荐答案

检查维基百科的 JavaScript版本历史记录。如果您找到1.8.5版本 - 这是您可以找到此对象工厂方法的语言版本 - 第9版Internet Explorer是支持该版本的版本。

Check Wikipedia's JavaScript version history. If you find 1.8.5 version - and this is the language version where you find this Object factory method available - 9th version of Internet Explorer is the one supporting that.

ECMAScript 5兼容性表也有此信息。

您也可以尝试使用Microsoft的IE虚拟机之一（可从此处或者，对于非常旧版本的IE，多个IE 。

You can also try for yourself using one of Microsoft's IE virtual machines (available from here or, for very old versions of IE, Multiple IE.

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