javascript适配器模式和组合模式原理与实现方法详解

//谷歌和百度地图的渲染地图调用的方式不一样
        var googleMap = {
            show: function () {
                console.log('开始渲染谷歌地图')
            }
        }
        var BaiduMap = {
            display: function () {
                console.log('开始渲染谷歌地图')
            }
        }
        //我们 程序中的渲染地图方法入下
        var renderMap = function (map) {
            if (map.show instanceof Function) {
                map.show()
            }
        }
        //baiduMap 来源于第三方，不能改变其内部构造，那么需要对百度地图做一下适配
        var BaiduAdapter = {
            show: function () {
                return BaiduMap.display()
            }
        }

 //接口数据格式的统一适配
        var cityData = [{
                name: 'shenzhen',
                id: 11
            },
            {
                name: 'guangzhou',
                id: 12
            }
        ]
        //新数据源
        var newcityData = {
            'shenzhen': 11,
            'guanzghou': 12,
            'zhuhai': 12
        }
        //数据格式转换适配器
        var addressAdapter = function (data) {
            var address = [];
            for (var i in data) {
                var objTemp = {};
                objTemp.name = i;
                objTemp.id = data[i];
                address.push(objTemp)
            }
            return address;
        }
        console.log(addressAdapter(newcityData))

 //扫描文件夹 folder 和 file 两个类
        var Folder = function (name) {
            this.name = name;
            this.file = []
        }
        Folder.prototype.add = function (file) {
            this.file.push(file)
        }
        Folder.prototype.scan = function () {
            console.log('开始扫描文件夹'+this.name)
            for(var i=0;i<this.file.length;i++){
                this.file[i].scan()
            }
        }
        var File = function(name){
            this.name = name;
        }
        File.prototype.add = function(){
            throw new Error('文件下面不能再添加文件')
        }
        File.prototype.scan = function () {
            console.log('开始扫描文件'+this.name)
        }
        var chinese = new File('chinese')
        var math = new File('math')
        var English = new File('English')
        var hobby = new File('hobby')
        var folder1=new Folder('subject');
        folder1.add(chinese)
        folder1.add(math)
        folder1.add(English)
        var folder2=new Folder('entertainment')
        folder2.add(hobby)
        var folder=new Folder('doc')
        folder.add(folder1)
        folder.add(folder2)
        console.log(folder)
        folder.scan()