JS打印对象的方法&将Object转换为String的函数

1 function writeObj(obj) {
2             var description = "";
3             for (var i in obj) {
4                 var property = obj[i];
5                 description += i + " = " + property + "\n";
6             }
7             alert(description);
8         }

 1 function obj2string(o){ 
 2     var r=[]; 
 3     if(typeof o=="string"){ 
 4         return "\""+o.replace(/([\‘\"\\])/g,"\\$1").replace(/(\n)/g,"\\n").replace(/(\r)/g,"\\r").replace(/(\t)/g,"\\t")+"\""; 
 5     } 
 6     if(typeof o=="object"){ 
 7         if(!o.sort){ 
 8             for(var i in o){ 
 9                 r.push(i+":"+obj2string(o[i])); 
10             } 
11             if(!!document.all&&!/^\n?function\s*toString\(\)\s*\{\n?\s*\[native code\]\n?\s*\}\n?\s*$/.test(o.toString)){ 
12                 r.push("toString:"+o.toString.toString()); 
13             } 
14             r="{"+r.join()+"}"; 
15         }else{ 
16             for(var i=0;i<o.length;i++){ 
17                 r.push(obj2string(o[i])) 
18             } 
19             r="["+r.join()+"]"; 
20         }  
21         return r; 
22     }  
23     return o.toString(); 
24 }