How to transfer props of an object from one location to another?

Question

Following is an object with some deep properties.

const InitialObj = {
    Store: {propsFromStore: {}},
    Market: {propsFromMarket: {}},
    GoDown: {prop         


        

Answer 1

You can use a first function which will find which props should serve as references (Store, Market, GoDown), and use recursion on the others, with an auxiliary function:

const InitialObj = {
  Store: {propsFromStore: {}},
  Market: {propsFromMarket: {}},
  GoDown: {propsFromDown: {}},
  fruits: {store_c: "Store", otherProp1: {store_e: "Store", otherSubProp1: {}}, otherProp2: {}},
  vegetables: {market_d: "Market", otherProp1: {otherSubProp1: {godown_r: "GoDown", }}},
  fancy:{store_t: "Store", market_d: "Market", otherProp1: {otherSubProp1: {godown_r: "GoDown", }}},
};

function hydrateObj(obj, keys) {
  const refs = keys.reduce((o, k) => ({...o, [k]: obj[k]}), {});
  return Object.entries(obj).reduce((res, [k, v]) => {
    if(!keys.includes(k)) {
      res[k] = hydrateObjAux(v, keys, refs);
    }
    return res;
  }, {});
}

function hydrateObjAux(obj, keys, refs) {
  return Object.entries(obj).reduce((res, [k, v]) => {
    if(keys.includes(v)) {
      res[k] = refs[v];
    } else {
      res[k] = hydrateObjAux(v, keys, refs);
    }
    return res;
  }, {});
}

const res = hydrateObj(InitialObj, ['Store', 'Market', 'GoDown']);
document.body.innerHTML = '
' + JSON.stringify(res, 0, 4) + '
';