promisse chain

var Q = require('q');
promise1(2).then(function  (d) {
    return promise2(d)
}).then(console.log,console.log)

 function promise1 (d){
var def = Q.defer();
if(d===1){

    def.resolve('resuelto promise1')
}else{
    
def.reject(new Error ('error in promise1'))
}
    return def.promise
}

 function promise2 ( d){
var def = Q.defer();
console.log(d);
def.reject(new Error ('error in promise2'))
    return def.promise
}