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

Use object.entries to get the keys and values. Loop over changing the key.

Changing the object directly

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

// Object.entries(obj).forEach(function(arr) {
//   var key = arr[0]
//   var value = arr[1]
//   delete obj[key]
//   obj[key.split(".").pop()] = value
// })
Object.entries(obj).forEach(([key, value]) => {
  delete obj[key]
  obj[key.split(".").pop()] = value
})

console.log(obj)

or reduce to create a new object

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

// const updated = Object.entries(obj).forEach(function(obj, arr) {
//   var key = arr[0]
//   var value = arr[1]
//   obj[key.split(".").pop()] = value
//   return obj
// }, {})
const updated = Object.entries(obj).reduce((obj, [key, value]) => {
  obj[key.split(".").pop()] = value
  return obj
}, {})

console.log(updated)