IsTruthy class

Checks if the element in question is truthy. The following are falsey:

• a non-empty string
• a non-empty list
• a non-empty map
• any number other than 0
• true
• any object other than Error
• any object other than Exception
• any object other thatn null

Inheritance

• Object
• Constraint
• IsTruthy

Constructors

IsTruthy({required String key})

Checks if the element in question is truthy. The following are falsey:

Properties

hashCode → int

The hash code for this object.

no setter, inherited

key → String

The key on which the constraint should be applied on

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value → dynamic

the value that is used when evaluating the constraint

final, inherited

Methods

evaluate(JSON payload) → bool

Check if the payload satisfies the Constraint

override

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