Remove Characters from All Keys in an Object (Lodash OK)

Question

I have a bothersome length of characters before all keys in this object. Since they are all the same, I would like to do a .map() or forEach() or some

Answer 1

let obj = {
  'remove.this.string.a': "apple",
  'remove.this.string.b': "banana",
  'remove.this.string.c': "carrot",
  'remove.this.string.d': "diakon"
};

let transformed = Object.entries(obj).reduce((t, [key, value]) => {
  t[key.substr(19)] = value;
  return t;
}, {});

console.log(transformed);