实现javascript对象序列化

实现javascript对象序列化

//序列化js对象pwup
function serialize_json(obj){ //write by pwup
    var stack=[];
    var type="com";
    var obj_count=0;
    var result=[];
    stack.push(obj);
    obj_count++;
    
    while(obj_count!=0){
        var obj=stack.pop();
        obj_count--;
        
        if(typeof(obj)!="object"){
            result.push(String(obj));
            continue;
        }
        
        if(obj.length!=undefined){
            type="list";
            stack.push("[");
        }else{
            type="object";
            stack.push("{");
        }
        obj_count++;
        
        var flag=false;
        for(var i in obj){
            flag=true;
            var elem=obj[i];
            var type_e=typeof(elem);
            
            if(type=="list"){
                if(type_e!="object"){
                    stack.push('"'+elem+'"');
                    obj_count++;
                }else{
                    stack.push(elem);
                    obj_count++;
                }
            }else if(type=="object"){
                if(typeof(elem)!="object"){
                    stack.push('"'+i+'":"'+elem+'"');
                    obj_count++;
                }else{
                    stack.push('"'+i+'":');
                    stack.push(elem);
                    obj_count+=2;
                }
            }
            stack.push(",")
            obj_count++;
        }
        
        if(flag){//去除最后一个逗号
            stack.pop();
            obj_count--;
        }
        if(obj.length!=undefined){
            stack.push("]");
        }else{
            stack.push("}");
        }
        obj_count++;
    }
    
    return result.reverse().join("");
}