JSON_MODIFY() Function in SQL Server 2016

-- JSON_MODIFY Demonstration to update the value of a property in JSON string
DECLARE @json nvarchar(max) 
  SET @json =N'
{
  "Person": [
    {
      "Name": {
        "FirstName": "Catherine",
        "LastName": "Abel"
      },
      "Address": {
        "State": "VA",
        "Zip": "24153"
      }
    }
  ]
}'

PRINT @json


IF (ISJSON(@json) = 1)
PRINT 'It is a Valid JSON' --Valid JSON
ELSE
PRINT 'It is an Invalid JSON string' 

PRINT JSON_MODIFY (@json, '$.Person[0].Address.Zip' , '35043');



PRINT @json