$(window).width() returns different width than indicated by Chrome DevTools

Question

When $(window).width() == 768, an alert() is executed. But in Chrome DevTools this actually happens when width is 786px. Why and how to make my JS fire at 768px not 786?

Answer 1

Have you tried simply:

window.innerWidth

or for backwards-compatibility with older browers

window.innerWidth
|| document.documentElement.clientWidth
|| document.body.clientWidth