Lodash get with optional expression

get.js

import { get } from "lodash";

function __get(obj, val, def) {
  const items = val.split("|");
  if (!items.length) return _.get(obj, val, def);
  const tpl = items.shift();
  let value;
  let index = 0;
  while (!value && index < items.length) {
    value = get(obj, `${tpl}.${items[index]}`);
    index++;
  }
  if (!value) value = def;
  return value;
}

const obj = {
  a: {
    b: {
      c: "value of c",
      d: "value of d"
    },
     l:[
      "fifo",
      "tuto"
    ]
  }
};
// example of get with optional values e,x,d,c
// the output in this example will be "value of d"
// IMPORTANT the optional expression should be in the last string object
const val = __get(obj, "a.b|e|x|d|c");
console.log(val);

// Example of Array
const arr = __get(obj, "a|l[3]|l[1]");
// Output will be tuto
console.log(arr);

Please note that this function is dependency of get lodash and it add the feature of optional values of an object