Inspired from gdibble

flatten.js

function flattenObject(ob) {
  let toReturn = {};
  let flatObject;
  for (let i in ob) {
  	console.log(i+ ' ' + typeof(ob[i]));
    if (!ob.hasOwnProperty(i)) {
      continue;
    }
    //Exclude arrays from the final result
    //Check this http://stackoverflow.com/questions/4775722/check-if-object-is-array
    if(ob[i] && Array === ob[i].constructor){
    	continue;
    }
    if ((typeof ob[i]) === 'object') {
      flatObject = flattenObject(ob[i]);
      for (let x in flatObject) {
        if (!flatObject.hasOwnProperty(x)) {
          continue;
        }
        //Exclude arrays from the final result
        if(flatObject[x] && Array === flatObject.constructor){
        	continue;
        }
        toReturn[i + (!!isNaN(x) ? '.' + x : '')] = flatObject[x];
      }
    } else {
      toReturn[i] = ob[i];
    }
  }
  return toReturn;
}

Stripping out arrays means this is useless for any data containing them. Would be much better to instead flatten them too e.g.

{ a: ["b", "c"] } => { "a.0": "b", "a.1": "c" }