HasField

Function Parameters
Examples

The function ‘HasField’ is used to check if a JsonPath expression evaluates to a JSON object that has a given field.

Function Parameters 

path:
- Required: Yes
- Type: JSON path.
- Description: valid json path. Examples: “e.Salary”, “e.Address.Street”
key:
- Required: Yes
- Type: string
- Description: JSON field name to check for existence in the object referenced by JSON path in parameter path.

Examples 

{
  "HasField_1": "$value(HasFieldData.Array1.Where(x => HasField(x, 'Id')))",
  "HasField_2": "$value(HasFieldData.Array1.Where(x => HasField(x.Address, 'Street')))",
  "HasField_3": "$(HasField(HasFieldData.InvalidPath, 'Street')) is false"
}