All files events.js

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var bind = window.addEventListener ? 'addEventListener' : 'attachEvent',
  unbind = window.removeEventListener ? 'removeEventListener' : 'detachEvent',
  prefix = bind !== 'addEventListener' ? 'on' : '',
  toArray = require('./to-array')
 
/**
 * Bind `el` event `type` to `fn`.
 *
 * @param {Element} el, NodeList, HTMLCollection or Array
 * @param {String} type
 * @param {Function} fn
 * @param {Boolean} capture
 * @api public
 */
 
exports.bind = function(el, type, fn, capture){
  el = toArray(el);
  for ( var i = 0, il = el.length; i < il; i++ ) {
    el[i][bind](prefix + type, fn, capture || false);
  }
}
 
/**
 * Unbind `el` event `type`'s callback `fn`.
 *
 * @param {Element} el, NodeList, HTMLCollection or Array
 * @param {String} type
 * @param {Function} fn
 * @param {Boolean} capture
 * @api public
 */
 
exports.unbind = function(el, type, fn, capture){
  el = toArray(el);
  for ( var i = 0, il = el.length; i < il; i++ ) {
    el[i][unbind](prefix + type, fn, capture || false);
  }
}