Convert JavaScript string in dot notation into an object reference

Question

Given a JS object

var obj = { a: { b: \'1\', c: \'2\' } }

and a string

\"a.b\"

how can I convert the stri

Answer 1

here's my 10 cents to case, bellow function will get/set based on path provided,.. sure u can improve it, remove || and replace it with Object.hasOwnProperty if you do care about false values mistakenly,

i tested it with a.b.c and a.b.2.c {a:{b:[0,1,{c:7}]}} and its works for both setting and getting :).

cheerz

function helper(obj, path, setValue){
  const l = String(path).split('.');
  return l.reduce((o,i, idx)=>{
   if( l.length-idx===1)  { o[i] = setValue || o[i];return setValue ? obj : o[i];}
  o[i] = o[i] || {};
   return o[i];
  }, x)
}