JSON

JSON.js

/*
 * @name:JSON.js
 * @description:
 * @author:[email protected]
 * @date:2012-05-02
 * @param:
 * @todo:
 * @changelog:
 */
window.JSON = window.JSON || {
    isObject:function(obj){
        return Object.prototype.toString.call(obj) == '[object Object]';
    },
    isString:function(obj){
        return Object.prototype.toString.call(obj) == '[object String]';
    },
    isNull:function(obj){
        return Object.prototype.toString.call(obj) == '[object Null]';
    },
    isUndefined:function(obj){
        return void 0 === obj;
    },
    stringify:function(obj){
        if(!this.isObject(obj)) return;

        var ret = '';
        ret = this.strfy(obj);

        return '{'+ret+'}';
    },
    strfy:function(obj){
        if(!this.isObject(obj)) return this.isString(obj) ? '"'+obj+'"' : obj.toString();

        var ret = [];
        for(var k in obj){
            if(this.isUndefined(obj[k])) continue;
            else if(this.isNull(obj[k])) ret.push('"'+k+'":null');
            else if(this.isObject(obj[k])) ret.push('"'+k+'":{'+this.strfy(obj[k])+'}');
            else ret.push('"'+k+'":'+this.strfy(obj[k]));
        }

        return ret.join();
    }
}