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Facade.js
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/*
* Facade(外观)模式
* 简化API展示,可以提高可见性
* jQuery中常见,$(el).css(),$(el).animate()...,提供更简单的公共接口
* Facade模式简化类的接口,并将类从代码中解耦
*/
// e.m.1
var addMyEvent = function(el, ev, fn){
if(el.addEventListener){
el.addEventListener(ev, fn, false);
}else if(el.attachEvent){
el.attachEvent('on' + ev, fn);
}else{
el['on' + ev] = fn;
}
}
// e.m.2
var module = (function(){
var _private = {
i : 5,
get : function(){
console.log("current value:" + this.i);
},
set : function(val){
this.i = val;
},
run : function(){
console.log("running");
},
jump : function(){
console.log("jumping");
}
};
return {
facade : function(args){
_private.set(args.val);
_private.get();
if(args.run){
_private.run();
}
}
}
})();
module.facade({ run : true, val : 10});