All details for img screen display size

Answer 1

for screen properties, among wich size and available size, use the window.screen object:

https://developer.mozilla.org/en-US/docs/Web/API/Screen

for window size, use outerWidth, outerHeight, innerWidth and innerHeight window propeties:

https://developer.mozilla.org/en-US/docs/Web/API/Window/outerWidth

https://developer.mozilla.org/en-US/docs/Web/API/Window/outerHeight

https://developer.mozilla.org/en-US/docs/Web/API/Window/innerWidth

https://developer.mozilla.org/en-US/docs/Web/API/Window/innerHeight