MapSchema constructor Null safety
- [dynamic keyType,
- dynamic valueType,
- bool? req,
- List<
IValidationRule> ? rules]
Creates a new instance of validation schema and sets its values.
keyType
a type of map keys. Null means that keys may have any type.valueType
a type of map values. Null means that values may have any type.required
(optional) true to always require non-null values.rules
(optional) a list with validation rules.
See IValidationRule See TypeCode