Answers for "how to get the screen resolution in javascript"

javascript screen size

var w = window.innerWidth;
var h = window.innerHeight;

get screen width javascript

window.screen.width
//or just
screen.width

get the size of the screen javascript

window.screen.height;
window.screen.width;

get window resolution javascript

var clientWidth = document.documentElement.clientWidth;
 $("h2").text(clientWidth);

js know size of screen

alert("Your screen resolution is: " + screen.width + "x" + screen.height)