Node and NodeFilter functions don't appear in "for .. in window" and "Object.keys(window)"

Asked Jul 07 '17 at 09:59

Active Jul 07 '17 at 09:59

Viewed 25 times

You can try it in your browser (I verified in Chrome 59):

window.NodeFilter returns a function

Object.keys(window).indexOf("NodeFilter") returns -1

for (var prop in window) if (prop==="NodeFilter") console.log("yay") prints nothing

The same is true for window.Node.

Why does it happen? How can I get the list of all window properties?

asked Jul 07 '17 at 09:59

kolobok

1

Those properties are non-enumerable. So use `Object.getOwnPropertyNames(window)`. – Sebastian Simon Jul 07 '17 at 10:02
1

Possible duplicate of [How to list the properties of a JavaScript object](https://stackoverflow.com/questions/208016/how-to-list-the-properties-of-a-javascript-object) – Sebastian Simon Jul 07 '17 at 10:02
@Xufox thanks a lot! – kolobok Jul 07 '17 at 10:06

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