JsonNumber class

A specialized JSON field for handling generic numeric values.

JsonNumber extends JsonField<num> to provide type-safe handling of numeric values that can be either integers or doubles. It's useful when you need to accept any numeric type without specifying whether it's an integer or floating-point number.

Key Features:

  • Accepts both int and double values (via num type)
  • Parses numeric strings to numbers
  • Defaults to 0 when value is null
  • Type-safe numeric operations

Usage Example:

final count = JsonNumber('count');
count.value = 42;        // Integer
count.value = 3.14;      // Double
count.value = "100";     // String parsed to number
print(count.value);      // 100

See also:

Inheritance

Constructors

JsonNumber(String fieldName)
Creates a new JsonNumber field with the specified field name.

Properties

error ↔ String?
An error message associated with this field, if any.
getter/setter pairinherited
fieldName → String
The name of this field as it appears in JSON data.
finalinherited
hasError → bool
Returns true if this field has an error message.
no setterinherited
hashCode → int
Returns the hash code for this field.
no setterinherited
hasInformation → bool
Returns true if this field has an informational message.
no setterinherited
hasWarning → bool
Returns true if this field has a warning message.
no setterinherited
information ↔ String?
An informational message associated with this field, if any.
getter/setter pairinherited
isNotNull → bool
Returns true if the raw value of this field is not null.
no setterinherited
isNull → bool
Returns true if the raw value of this field is null.
no setterinherited
rawValue ↔ num?
The raw, unprocessed value stored in this field.
getter/setter pairinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value ↔ num
Returns the numeric value of this field.
getter/setter pairoverride
warning ↔ String?
A warning message associated with this field, if any.
getter/setter pairinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toJson() → num?
Serializes the numeric value to JSON format.
override
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
Determines whether this field is equal to another object.
inherited