JS模式--通用對象池的實現

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        var objectPoolFactory = function (createObjFn) {            var objectPool = [];            return {                create: function () {                    var obj = objectPool.length === 0 ? createObjFn.apply(this, arguments) : objectPool.shift();                    return obj;                },                recover: function (obj) {                    objectPool.push(obj);                }            };        };        var iframeFactory = objectPoolFactory(function () {            var iframe = document.createElement(‘iframe‘);            document.body.appendChild(iframe);            iframe.onload = function () {                iframe.onload = null;                iframeFactory.recover(iframe);            };            return iframe;        });        var iframe1 = iframeFactory.create();        iframe1.src = ‘http://www.baidu.com‘;        var iframe2 = iframeFactory.create();        iframe2.src = ‘http://www.sina.com‘;        setTimeout(function () {            var iframe3 = iframeFactory.create();            iframe3.src = ‘http://www.qq.com‘;        }, 10000);

 

JS模式--通用對象池的實現