javascript - How to calculate how much of an element is off screen? -


i need calculate how of element off screen—only in top , bottom of it.

i'm using snippet see if element partially visible, need know how of not visible.

i know it's between currentop, element height , size of user can see, think i'm missing something.

you should use element.getboundingclientrect() method , run calculations based on page position. answer detailed excellently in question retrieve position (x,y) of html element.


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