Exists implements the `?` operator.
(string)
| 118 | |
| 119 | // Exists implements the `?` operator. |
| 120 | Exists(string) (bool, error) |
| 121 | |
| 122 | // StripNulls returns the JSON document with all object fields that have null values omitted |
| 123 | // and whether it needs to strip nulls. Stripping nulls is needed only if it contains some |