javascript interface annotation method

//Annotation method 
//Simple, weak function. Large-scale projects rely on specifications and standards with sufficient time. Shortcomings: artificial compliance 
/* 
* interface personDao{ 
* function add(obj); 
* function remove(obj) 
* function find (id) 
* } 
*/ 

var ParsondaoTmp1 = function(){}; 

ParsondaoTmp1.prototype.add = function(obj){ 
    
}; 

ParsondaoTmp1.prototype.remove = function (obj) { 
    
}; 


ParsondaoTmp1.prototype.find = function( id){ 
    
};