Validators class

A collection of reusable field validators for use with Form or Flutter's built-in Form widget.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

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

Static Methods

compose(List<FormFieldValidator<String>> validators) → FormFieldValidator<String>

Combines multiple validators — returns the first error found.

email([String? message]) → FormFieldValidator<String>

Validates email format.

match(String getOther(), [String? message]) → FormFieldValidator<String>

Validates that the value matches another field's value.

maxLength(int max, [String? message]) → FormFieldValidator<String>

Validates maximum character length.

minLength(int min, [String? message]) → FormFieldValidator<String>

Validates minimum character length.

numeric([String? message]) → FormFieldValidator<String>

Validates that the value is numeric.

password({int minLength = 8, bool requireUppercase = false, bool requireSymbol = false, String? message}) → FormFieldValidator<String>

Validates password strength.

phone([String? message]) → FormFieldValidator<String>

Validates phone number (international format).

required([String? message]) → FormFieldValidator<String>

Validates that the field is not empty.

url([String? message]) → FormFieldValidator<String>

Validates URL format.