zepto兼容ie10的方法

原先的zepto,通过__proto__赋值,来使dom继承到$.fn方法,

无奈IE11之前的IE10,IE9不支持这种写法,

所以我们只能自己手动把方法添加到dom
// `$.zepto.Z` swaps out the prototype of the given `dom` array
// of nodes with `$.fn` and thus supplying all the Zepto functions
// to the array. Note that `__proto__` is not supported on Internet
// Explorer. This method can be overriden in plugins.
zepto.Z = function(dom, selector) {
dom = dom || []

// 支持ie10,主要是支持wp8
if(navigator.userAgent.indexOf(“MSIE 10″) > -1){
for(var func in $.fn){
dom[func] = $.fn[func];
}
}
else{
dom.__proto__ = $.fn
}

dom.selector = selector || ”
return dom
}

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