触摸屏是现在所有智能手机的标配，还包括各种平板设备，而且很多桌面也慢慢在开始支持触摸操作。要开发支持触摸屏设备的 Web 应用，我们需要借助浏览器的触摸事件来实线。

下图是各种触摸事件说明：

本文我们介绍 11 个用来处理触摸事件以及支持多点触摸的 JS 库：

• QUO JS 
  Events: Touch, Tap, Double tap, Hold, Fingers, Swipe, Swipe Up, Swipe Right, Swipe Down, Swipe Left, Drag
  Other features: Built-in jQuery-like methods. It uses $$ to avoid conflict.
  File size: 13KB minified
  Standlone: Yes
• Hammer JS 
  Events: Tap, Double tap, hold, drag, transform (pinch)
  Other features: Javascript library focused only for multi-touch gestures
  File size: 2KB minified
  Standlone: Yes
• Touchy 
  Events: long press, drag, pinch, rotate, swipe
  Other features: jQuery plugin for webkit browsers and browsers that support outch events
  File size: ~2.72KB minified
  Standlone: No, need jQuery framework
• Mootools-mobile 
  Events: Swipe, pinch, touch hold 
  Other features: Touch events are separated into different files.
  File size: -
  Standlone: No, need MooTools
• jQuery doubletap 
  Events: Touch, Swipe, Tap, Double tap, Swipe left, Swipe Right, Swipe up, Swipe down
  Other features: No android support yet
  File size: 4KB
  Standlone: No, need jQuery
• jGestures 
  Events: Orientation change, Pinch, Rotate, Swipe move, Swipe in multi direction, Swipe with 1,2,3 fingers, Tap with 1,2,3 fingers, pinch open, pinch close, shake in different directions
  Other features: Bundled with many gestures and useful events
  File size: 16KB minified 
  Standlone: No, need jQuery
• Touch Swipe 
  Events: Swipes in 4 directions, 1,2 fingers touch
  Other features: Allows swiping and page scrolling
  File size: 25KB
  Standlone: No, need jQuery
• Touchable 
  Events: Tap, Long Tap, Double tap, touchable move, touchable end
  Other features: Unifies touch and mouse events
  File size: 1.96KB
  Standlone: No, need jQuery
• thumbs.js 
  Events: touch start, touch end, touch end, touch move, mouse down, mouse up, mouse move
  Other features: PhoneGap and mobile web friendly
  File size: 612 bytes minified
  Standlone: Yes
• jQuery.pep.js 
  Events: Drag
  Other features: Uses CSS3 animations, built-in many drag features
  File size: 16KB
  Standlone: No, need jQuery
• Jetster 
  Events: Tap, Double tap, Swipe, Flick, Pinch, Pinch arrow, Pinch widen, Pinch end
  Other features: Jester makes recognising gestures on DOM elements really easy
  File size: 25KB
  Standlone: Yes