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

If you've already got lodash, _.mapKeys is what you're looking for. Here's an example of what you asked for directly (to just slice to 19 characters), but you could easily do a split or replace or whatever else you'd like:

var _ = require('lodash')

let data = {
  'remove.this.string.a': "apple",
  'remove.this.string.b': "banana",
  'remove.this.string.c': "carrot",
  'remove.this.string.d': "diakon"
}
_.mapKeys(data, (val, key) => key.slice(19))

Here's a runkit: https://runkit.com/daedalus28/slice-keys