关于一个location对象的问题

Question

window.location 和 window.document.location 有什么本质性的区别吗？

Answer 1

没有区别， 都是location对象的引用
window.location == document.location

Answer 2

javascriptwindow.location === document.location;    // true

Answer 3

根据 W3C 规范：

The location attribute of the Window interface must return the Location object for that Window object's Document.

window 的 location 属性指的就是 window 对象的 document 属性的 location，二者是一回事。所以：

window.location === window.document.location   // true

Answer 4

W3C 规范: http://www.w3.org/TR/2011/WD-html5-20110525/history.html#the-location-...

规范里面真的说这俩货冒得区别。

jswindow.location === window.document.location   // true

Answer 5

The Location interface

Each Document object in a browsing context's session history is associated with a unique instance of a Location object.

document . location [ = value ]
window . location [ = value ]
Returns a Location object with the current page's location.

Can be set, to navigate to another page.
明显，两者是相等的