javascript 设计模式(适配器模式)

[wl05]

概念

适配器模式的作用是解决两个软件实体间的接口不兼容的问题。

代码

var getGuangdongCity = function () {
    var guangdongCity = [
        {
            name: 'shenzhen',
            id: 11,
        }, {
            name: 'guangzhou',
            id: 12,
        }
    ];
    return guangdongCity;
};
var render = function (fn) {
    console.log('开始渲染广东省地图');
    document.write(JSON.stringify(fn()));
};
var addressAdapter = function (oldAddressfn) {
    var address = {},
        oldAddress = oldAddressfn();
    for (var i = 0, c; c = oldAddress[i++];) {
        address[c.name] = c.id;
    }
    return function () {
        return address;
    }
};
render(addressAdapter(getGuangdongCity));

参考资料

1. JavaScript设计模式与开发实践-第16章-适配器模式