How to record video from the macOS screen in maximum quality?

Question

JavaScript

What program can record video from part of the screen and then export it in maximum quality?
I tried several well-known programs (QuickTime, ScreenFlow, Camtasia) artifacts are visible everywhere on the video.
I want to get the highest quality video picture, in quality, like a static screenshot of the screen at 100% scale.

Answer 1

Of course access to the property of the object.
In the case of an object, the complexity is O (1), and with an array, O (n)

Answer 2

Andrei Burov agrees, if really large objects, then you can still make a declaration var i=0; i
var i=0,
o=objectsArr.length;
for (i; i<o; i++) {
}

Answer 3

Do a test on jsperf.com and see. The results may be unexpected.

Answer 4

Command + Shift + 5 - built-in screen recorder in Catalina
I strongly doubt that someone from the outside could outdo it.
Basically, programs for complex things are just another candy wrapper in which the system api is wrapped.