Shallow merge objects without overwriting or mutation

shallowMerge.js

function mergeObjects(merger,mergee){
  var mergent = {};
  for(var prop in mergee){
    mergent[prop] = mergee[prop]
  }
  for(prop in merger){
    if(mergent[prop])
        mergent[prop] = mergeObjects(mergent[prop],merger[prop])
    else mergent[prop] = merger[prop]
  }
  return mergent;
}