re: Are there functions similar to Ruby's `dig` in other languages? VIEW POST

FULL DISCUSSION
 

It's known as optional chaining / null propagation.
In Javascript it's described as ECMAScript proposal

instead of writing:

const phone = orders && orders[0] && orders[0].customer && orders[0].customer.phone

it could be like:

const phone = orders?[0]?.customer?.phone

For now, there are libraries like lodash/get, where we can use function:

import { get } from 'lodash'
const phone = get(orders[0], 'customer.phone', 'optional default value')
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