what is the relationship between the window object and the Object object in javascript?
what is the relationship between the window object and the Object object in javascript?
window is a built-in global Object,window created by Object and inherits the properties and methods of Object through prototype chains
I understand that Lou Zhu doesn't have a deep understanding of the window
object.
browser object hierarchy is the window
object. What does it stand for? It's just a browser window.
A user can open multiple windows within the browser, each of which is a separate window
object, which may load different url
, even with the same url
address, they are independent of each other.
window
object is the parent of all objects in the browser DOM
, and the parent is also the object, so the ancestor of the window
object is also Object
.
you have to say something that doesn't matter. The prototype chain of the window object has Object.prototype upstream.
window instanceof Object; // true
at the same time, the prototype of the window object is on the prototype chain headed by the Object prototype!
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