| 1 | export default function () {
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| 2 | const feature = {
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| 3 | touch: !!(('ontouchstart' in window)
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| 4 | || window.navigator && window.navigator.msPointerEnabled && window.MSGesture
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| 5 | || window.DocumentTouch && document instanceof DocumentTouch),
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| 6 | ie: window.navigator.userAgent.indexOf('MSIE') > 0
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| 7 | || !!window.navigator.userAgent.match(/Trident.*rv\:11\./),
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| 8 | small: window.matchMedia('(max-width: 34em)').matches
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| 9 | }
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| 10 |
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| 11 | return (feature.touch && !feature.ie) || feature.small
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| 12 | }
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