Dig through object to find target key

dig.js

const dig = (obj, target) => {
  if (target in obj) {
    return obj[target];
  }
  
  for (const key in obj) {
    if (typeof obj[key] === 'object') {
      const result = dig(obj[key], target);
      if (result !== undefined) {
        return result;
      }
    }
  }
  
  return undefined;
};

https://www.30secondsofcode.org/js/s/get-nested-object-value/#search-for-a-deeply-nested-property-in-an-object