n8n · JSON & objects

n8n `?. (optional chaining)`

Returns undefined instead of throwing an error when a value along the path is missing.

Syntax

object?.key?.nested

Example

$json.customer?.address?.city

Result: undefined (no error)

Practice ?. (optional chaining) — free interactive labs

n8nIntermediate

Avoid Errors on Missing Fields with Optional Chaining in n8n

Learn how to safely read nested fields that may not exist using ?. in n8n expressions.

More n8n json & objects functions

JSON.parse()JSON.stringify()Object.keys()$json dot notation