FieldValidatorType

The validator function for the Field component. The function arguments are:

• value - The current value of the field.
• valueGetter - Function which can be used to get other fields value.

Usable when validator depends on more than one field. Supports field paths.

• fieldProps - Props of the Field component. Currently contains only the name prop.

Usable when one validator is used across multiple fields.

Returns string to signify error or undefined to signify validation success.