Remove value from object without mutation

Question

What\'s a good and short way to remove a value from an object at a specific key without mutating the original object?

I\'d like to do something like:

Answer 1

with lodash cloneDeep and delete

(note: lodash clone can be used instead for shallow objects)

const obj = {a: 1, b: 2, c: 3}
const unwantedKey = 'a'

const _ = require('lodash')
const objCopy = _.cloneDeep(obj)
delete objCopy[unwantedKey]
// objCopy = {b: 2, c: 3}