how to get the screen size in javascript code example

Example 1: javascript screen size

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

Example 2: get screen width javascript

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

Example 3: 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 4: js know size of screen

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