How to get primitive properties of nested objects recursively?

Question

JavaScript

link

How to make a return here to return the found values?

function getProp(o) {
   for(var prop in o) {
      if(typeof(o[prop]) === 'object') {
         getProp(o[prop]);         
      } else {
         //return o[prop];
         console.log(o[prop]);
      }
   }
}

Answer 1

const getPrimitiveProps = (obj) =>
  Object.entries(obj).reduce((acc, [ k, v ]) => ({
    ...acc,
    ...(v instanceof Object ? getPrimitiveProps(v) : { [k]: v }),
  }), {});

or

const getPrimitiveProps = (obj) =>
  Object.assign({}, ...Object.entries(obj).map(([ k, v ]) =>
    v instanceof Object ? getPrimitiveProps(v) : { [k]: v }
  ));

Answer 2

function getProp(o) {
    var result = [];
    for(var prop in o) {
        if(typeof(o[prop]) === 'object') {
            result = result.concat(getProp(o[prop]));
        }
    }
    return result;
}