Accept the first fulfilled value

gistfile1.js

var Q = require('q');
 
var f = function(a) {
  var defer = Q.defer();
  if (a % 2 === 0)
    defer.resolve(a);
  else
    defer.reject(new Error("Rejected, module is odd" + a));  
  return defer.promise;
};
 
var p = Q.any([f(42), f(12)])
  .then(function(result) {
    console.log(result);
  })
  .catch(function(err) {
    console.error("Error " + err.message);
  });