addPromise.js

function addPromise(a,b){
    var def = deferred();
    asyncAdd(a,b,function(err,success){\
        if(err){
            def.reject(e);
        }else{
            def.resolve(e);
        }
    });
    return def.promise
}

addPromise(2,3).then(function(data){
    console.log(data);
},function(err){
    console.log('oh noes!');
});

hy i am new waht is a program