Check mobile media query in javascript

gistfile1.txt

function _isMobile() {

		const mobileBreapoint = window.getComputedStyle(document.body).getPropertyValue('--mobile-breakpoint'); 
		
		const mobileMediaQuery = `only screen and (max-width: ${mobileBreapoint})`;
		console.log(mobileMediaQuery);

		return window.matchMedia(mobileMediaQuery).matches;

	}