browser get current screen dimensions code example
Example 1: java script find screen size of device
// Size of browser viewport.
$(window).height();
$(window).width();
// Size of HTML document (same as pageHeight/pageWidth in screenshot).
$(document).height();
$(document).width();
Example 2: js know size of screen
alert("Your screen resolution is: " + screen.width + "x" + screen.height)