Add supportsTouchEvents

snippets/supportsTouchEvents.md

@@ -0,0 +1,18 @@
+---
+title: supportsTouchEvents
+tags: browser,intermediate
+---
+
+Returns `true` if touch events are supported, `false` otherwise.
+
+Check if `ontouchstart` exists in `window` or `window.DocumentTouch` is true and the current `document` is an instance of it.
+
+```js
+const supportsTouchEvents = () =>
+  window &&
+  ('ontouchstart' in window || window.DocumentTouch && document instanceof window.DocumentTouch);
+```
+
+```js
+supportsTouchEvents(); // true
+```