Answers for "js get device width"

check device width using js

const screenWidth  = window.screen.width;
const screenHeight = window.screen.height;

get screen width javascript

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

device width js

window.screen.availWidth

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();