ReqNum class
Convenient validator for required, numeric fields.
Examples:
- valid input: "1", "123", "-1", "-9.99"
- invalid input: "A", "12A", "12.A3"
Constructors
- ReqNum({String? blank, String? mal})
- Constrains data to numeric values.
- ReqNum.max(num max, {String? blank, String? mal, String? large})
-
Constrains data to numeric values that are less than or equal to
max. - ReqNum.min(num min, {String? blank, String? mal, String? small})
-
Constrains data to numeric values greater than or equal to
min. - ReqNum.neg({String? blank, String? mal, String? pos})
- Constrains data to negative numbers (zero excluded).
- ReqNum.pos({String? blank, String? mal, String? neg})
- Constrains data to positive numbers (zero included).
- ReqNum.range(num min, num max, {String? blank, String? mal, String? small, String? large})
-
Constrains data to numeric values within the range
min–max.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
call(
String? input) → String? -
Valid — returns null – if
inputis either numeric or null. -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited