This feature enables readable and concise expression of property accesses with built-in nullish checking.

optional-chaining.js

const object = { id: 123, names: { first: 'Srdjan', last: 'Rakic' }};

// With lodash's `_.get`:
const firstName = _.get(object, 'names.first'); // -> 'Srdjan'
const middleName = _.get(object, 'names.middle' : '(no middle name)'); // -> '(no middle name)'

// with optional chaining and nullish coalescing: 
const firstName = object?.names?.first ?? '(no first name)'; // -> 'Srdjan'
const middleName = object?.names?.middle ?? '(no middle name)'; // -> '(no middle name)'