cdjs5.js

function addToScope(){
        if(!dbrepo.hasOwnProperty(bindingProperty)){
            let value; 

            Object.defineProperty(dbrepo,bindingProperty,{
                configurable:true,
                enumerable:true ,
                set: function(newvalue){
                  value = newvalue;
                },
                get:function(){
                    return value; 
                }
            })
        }
    }