Document：defaultView 屬性

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

在瀏覽器中，document.defaultView 回傳與文件相關聯的 window 物件，若無則為 null。

此屬性為唯讀。

值

window 物件。

Specification
HTML # dom-document-defaultview-dev