This procedure adds Null value for existing field.
| Parameter | Type | Description | |
|---|---|---|---|
| ptr | POINTER | Mandatory | Pointer to field |
The procedure returns pointer of field. If procedure can’t add value, then returns null.
NOTE: User do not need to provide any value. Procedure automatically adds null to JSON.`
Examples:
xxPtr = respAddField('data': 'contact');
respAddNullValue(xxPtr);