前些天說過關于JavaScript的Literal Syntax問題，覺得挺有意思的，于是又研究了一下，能不能把對象再轉化為Literal形式呢？就像我們平時說的序列化和反序列化啥的。當然可以了，因為JavaScript對象自身都提供了一個toString()方法，默認就是返回簡單對象的Literal形式。

??? 我們需要作的就是判斷對象的具體類型，然后分別Serialize每種對象，再輸出為Object的Literal語法形式就行了。準確的判斷對象類型，使用我曾經說過的__typeof__方法就行了，序列化對象實例的代碼如下：
Object.prototype.Serialize?=?function()
{
????var?type?=?__typeof__(this);
????switch(type)
????{
?????????case?'Array'?:
?????????{
??????????????var?strArray?=?'[';?
??????????????for?(?var?i=0?;?i?<?this.length?;?++i?)
??????????????{
???????????????????var?value?=?'';?
???????????????????if?(?this[i]?)
???????????????????{
????????????????????????value?=?this[i].Serialize();
???????????????????}
???????????????????strArray?+=?value?+?',';
??????????????}
??????????????if?(?strArray.charAt(strArray.length-1)?==?','?)
??????????????{
???????????????????strArray?=?strArray.substr(0,?strArray.length-1);
??????????????}
??????????????strArray?+=?']';??
??????????????return?strArray;
?????????}
?????????case?'Date'?:
?????????{
??????????????return?'new?Date('?+?this.getTime()?+?')';
?????????}
?????????case?'Boolean'?:
?????????case?'Function'?:
?????????case?'Number'?:
?????????case?'String'?:
?????????{
??????????????return?this.toString();
?????????}
?????????default?:
?????????{
??????????????var?serialize?=?'{';?
??????????????for?(?var?key?in?this?)
??????????????{
???????????????????if?(?key?==?'Serialize'?)?continue;?
???????????????????var?subserialize?=?'null';
???????????????????if?(?this[key]?!=?undefined?)
???????????????????{
????????????????????????subserialize?=?this[key].Serialize();
???????????????????}
???????????????????serialize?+=?'\r\n'?+?key?+?'?:?'?+?subserialize?+?',';
??????????????}
??????????????if?(?serialize.charAt(serialize.length-1)?==?','?)
??????????????{
???????????????????serialize?=?serialize.substr(0,?serialize.length-1);
??????????????}
??????????????serialize?+=?'\r\n}';
??????????????return?serialize;
?????????}
????}
};

??? 其實就是Array和Object的屬性比較的麻煩，需要遞歸的做這個Serialize操作。不過需要注意，Serialize方法就不需要被序列化出來了。下面是測試示例，不過這個序列化方法沒有對環狀引用做檢查，能序列化的對象很有限。

var?obj1?=?[];?
alert(obj1.Serialize());

var?obj2?=?[1,[2,[3,[4,[5,[6,[7,[8,[9,[0]]]]]]]]]];
alert(obj2.Serialize());

var?obj3?=?
????{
?????????Properties1?:?1,?Properties2?:?'2',?Properties3?:?[3],
?????????Method1?:?function(){?return?this.Properties1?+?this.Properties3[0];},
?????????Method2?:?function(){?return?this.Preperties2;?}
????};
alert(obj3.Serialize());??

var?obj4?=?[null,?1,?'string',?true,?function(){return?'keke';},?new?Object()];
alert(obj4.Serialize());

??? 至于反序列化就非常的容易了，把上面的序列化結果用eval執行一下，就得到類實例了。