knowing whether an object is in the camera frame of view

hi

is there a way to know whether a game object is within the camera frame of view?

thanks

There are lots of results from a quick search for this including this one: How can I know if a gameObject is 'seen' by a particular camera? - #2 by duck

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in a moment of weakness i forgot that the first resort is the old conventional search. also not sure whether i felt confident that i knew what to search
luckily i ran into you
thanks