Detect Touch Devices

isTouchDevice _helper.js

export const isTouchDevice = () => {


	let prefixes = ' -webkit- -moz- -o- -ms- '.split(' ')
	let mq = function(query) {
		return window.matchMedia(query).matches
	}

	if (('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch) {
		return true
	}

	// include the 'heartz' as a way to have a non matching MQ to help terminate the join
	// https://git.io/vznFH
	let query = ['(', prefixes.join('touch-enabled),('), 'heartz', ')'].join('')
	return mq(query)

}