# Field class

Represents a field or a dictionary of fields.

Implemented types
  - Finalizable
Mixed in types
  - IterableMixin<Field>
Available Extensions
  - EnumByName
  - IterableExtensions
  - NullableIterableExtensions

## Constructors

Field()
  Creates a new instance of the Field class.
Field.fromHandle(Pointer<id3BiosealField> handle)
  Creates a new instance of the Field class.

## Properties

containsBiometrics → bool
  A value indicating whether the field (or one of its child fields) contains biometric data.
  no setter
count → int
  Gets the number of elements contained in the list or dictionary.
  no setter
extensionType → FieldExtensionType
  The field extension type.
  no setter
fieldExtension → Extension?
  The field extension.
  no setter
fieldType → FieldType
  The field type.
  no setter
first → Field
  The first element.
  no setter inherited
handle → Pointer<id3BiosealField>
  Gets the native handle. return The native handle.
  no setter
hashCode → int
  The hash code for this object.
  no setter inherited
isEmpty → bool
  Whether this collection has no elements.
  no setter inherited
isNotEmpty → bool
  Whether this collection has at least one element.
  no setter inherited
isNull → bool
  A value indicating whether if the field is null.
  no setter
iterator → Iterator<Field>
  A new `Iterator` that allows iterating the elements of this `Iterable`.
  no setter override
keys → StringArray
  Gets a string list containing the keys in the dict.
  no setter
last → Field
  The last element.
  no setter inherited
length → int
  The number of elements in this.
  no setter inherited
name → String
  The field name.
  no setter
runtimeType → Type
  A representation of the runtime type of the object.
  no setter inherited
single → Field
  Checks that this iterable has only one element, and returns that element.
  no setter inherited
valueAsBinary → Uint8List
  The data as a binary array.
  no setter
valueAsBoolean → bool
  The field value as a boolean.
  no setter
valueAsBooleanArray → List<bool>
  The field value as an array of booleans.
  no setter
valueAsDate → DateTime?
  The field value as a date.
  no setter
valueAsDateTime → DateTime?
  The field value as a date/time.
  no setter
valueAsDateTimeArray → DateTimeArray
  The field value as an array of dates.
  no setter
valueAsFloat → double
  The field value as a float.
  no setter
valueAsFloatArray → List<double>
  The field value as an array of floats.
  no setter
valueAsInteger → int
  The field value as a 64-bit integer.
  no setter
valueAsIntegerArray → List<int>
  The field value as an array of 64-bit integers.
  no setter
valueAsString → String
  The field value as a string.
  no setter
valueAsStringArray → StringArray
  The field value as an array of strings.
  no setter
valueAsTime → DateTime?
  The field value as a time.
  no setter
valueAsTimestamp → int
  The field value as a timestamp (without timezone computation).
  no setter
valueAsTimestampArray → List<int>
  The field value as an array of timestamp.
  no setter
visibilityCondition → VisibilityCondition
  The visibility condition.
  no setter

## Methods

any(bool test(Field element)) → bool
  Checks whether any element of this iterable satisfies `test`.
  inherited
cast<R>() → Iterable<R>
  A view of this iterable as an iterable of `R` instances.
  inherited
contains(Object? element) → bool
  Whether the collection contains an element equal to `element`.
  inherited
containsBiometricData(BiometricDataType biometricDataType, String? biometricFormat) → bool
  Returns a value indicating whether the field (or one of its child fields) contains biometric data of the specified type and/or format.
containsExtension(FieldExtensionType extensionType) → bool
  Returns a value indicating whether the field (or one of its child fields) contains an extension of the specified type.
containsExtensionByName(String? extensionName) → bool
  Returns a value indicating whether the field (or one of its child fields) contains an extension with specified name.
containsKey(String? key) → bool
  Determines whether the Fieldobject contains the specified key.
dispose() → void
  Releases all resources used by this Field.
elementAt(int index) → Field
  Returns the `index`th element.
  inherited
every(bool test(Field element)) → bool
  Checks whether every element of this iterable satisfies `test`.
  inherited
expand<T>(Iterable<T> toElements(Field element)) → Iterable<T>
  Expands each element of this Iterable into zero or more elements.
  inherited
firstWhere(bool test(Field element), {Field orElse()?}) → Field
  The first element that satisfies the given predicate `test`.
  inherited
fold<T>(T initialValue, T combine(T previousValue, Field element)) → T
  Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
  inherited
followedBy(Iterable<Field> other) → Iterable<Field>
  Creates the lazy concatenation of this iterable and `other`.
  inherited
forEach(void action(Field element)) → void
  Invokes `action` on each element of this iterable in iteration order.
  inherited
get(String? key) → Field
  Gets an item of the Field object.
getBinaryAtIndex(int index) → Uint8List
  Gets the binary data at the specified index.
getContainsBiometrics() → bool
  Gets the A value indicating whether the field (or one of its child fields) contains biometric data.
getCount() → int
  Gets the number of elements in the Field object.
getExtensionType() → FieldExtensionType
  Gets the the field extension type.
getFieldExtension() → Extension?
  Gets the the field extension.
getFieldType() → FieldType
  Gets the the field type.
getIsNull() → bool
  Gets the A value indicating whether if the field is null.
getKeys() → StringArray
  Gets the gets a string list containing the keys in the dict.
getLocalizedLabel(String? language) → String
  Retrieves the localized label based on the provided language code.
getLocalizedValue(String? language) → String
  Retrieves the localized value based on the provided language code.
getName() → String
  Gets the the field name.
getObjectAtIndex(int index) → Field
  Gets the object at the specified index.
getValueAsBinary() → Uint8List
  Gets the the data as a binary array.
getValueAsBoolean() → bool
  Gets the the field value as a boolean.
getValueAsBooleanArray() → List<bool>
  Gets the the field value as an array of booleans.
getValueAsDate() → DateTime?
  Gets the the field value as a date.
getValueAsDateTime() → DateTime?
  Gets the the field value as a date/time.
getValueAsDateTimeArray() → DateTimeArray
  Gets the the field value as an array of dates.
getValueAsFloat() → double
  Gets the the field value as a float.
getValueAsFloatArray() → List<double>
  Gets the the field value as an array of floats.
getValueAsInteger() → int
  Gets the the field value as a 64-bit integer.
getValueAsIntegerArray() → List<int>
  Gets the the field value as an array of 64-bit integers.
getValueAsString() → String
  Gets the the field value as a string.
getValueAsStringArray() → StringArray
  Gets the the field value as an array of strings.
getValueAsTime() → DateTime?
  Gets the the field value as a time.
getValueAsTimestamp() → int
  Gets the the field value as a timestamp (without timezone computation).
getValueAsTimestampArray() → List<int>
  Gets the the field value as an array of timestamp.
getVisibilityCondition() → VisibilityCondition
  Gets the the visibility condition.
join([String separator = ""]) → String
  Converts each element to a String and concatenates the strings.
  inherited
lastWhere(bool test(Field element), {Field orElse()?}) → Field
  The last element that satisfies the given predicate `test`.
  inherited
map<T>(T toElement(Field e)) → Iterable<T>
  The current elements of this iterable modified by `toElement`.
  inherited
noSuchMethod(Invocation invocation) → dynamic
  Invoked when a nonexistent method or property is accessed.
  inherited
reduce(Field combine(Field value, Field element)) → Field
  Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
  inherited
setTimeZoneOffset(int offsetInSeconds) → void
  Set the time zone offset in seconds.
singleWhere(bool test(Field element), {Field orElse()?}) → Field
  The single element that satisfies `test`.
  inherited
skip(int count) → Iterable<Field>
  Creates an Iterable that provides all but the first `count` elements.
  inherited
skipWhile(bool test(Field value)) → Iterable<Field>
  Creates an `Iterable` that skips leading elements while `test` is satisfied.
  inherited
take(int count) → Iterable<Field>
  Creates a lazy iterable of the `count` first elements of this iterable.
  inherited
takeWhile(bool test(Field value)) → Iterable<Field>
  Creates a lazy iterable of the leading elements satisfying `test`.
  inherited
toList({bool growable = true}) → List<Field>
  Creates a List containing the elements of this Iterable.
  inherited
toSet() → Set<Field>
  Creates a Set containing the same elements as this iterable.
  inherited
toString() → String
  Returns a string representation of (some of) the elements of `this`.
  inherited
where(bool test(Field element)) → Iterable<Field>
  Creates a new lazy Iterable with all elements that satisfy the predicate `test`.
  inherited
whereType<T>() → Iterable<T>
  Creates a new lazy Iterable with all elements that have type `T`.
  inherited

## Operators

operator ==(Object other) → bool
  The equality operator.
  inherited
operator [](String key) → dynamic
  Gets or sets the element at the specified index.