Below are the main differences between window and document,
|It is the root level element in any web page||It is the direct child of the window object. This is also known as Document Object Model(DOM)|
|By default window object is available implicitly in the page||You can access it via window.document or document.|
|It has methods like alert(), confirm() and properties like document, location||It provides methods like getElementById, getElementByTagName, createElement etc|
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