Tuple<T1, T2> class
class Tuple<T1, T2> { final T1 item1; final T2 item2; const Tuple(this.item1, this.item2); bool operator ==(Tuple<T1, T2> other) { return other != null && item1 == other.item1 && item2 == other.item2; } String toString() => "{item1: $item1, item2: $item2}"; int hashCode() => Util.getHashCode([item1, item2]); Dynamic toJson() => { 'item1' : item1, 'item2' : item2 }; }
Subclasses
Properties
final Type runtimeType #
A representation of the runtime type of the object.
external Type get runtimeType;
Operators
bool operator ==(Tuple<T1, T2> other) #
The equality operator.
The default behavior for all Object
s is to return true if and
only if this
and
other are the same object.
If a subclass overrides the equality operator it should override the hashCode method as well to maintain consistency.
bool operator ==(Tuple<T1, T2> other) { return other != null && item1 == other.item1 && item2 == other.item2; }
Methods
int hashCode() #
Get a hash code for this object.
All objects have hash codes. Hash codes are guaranteed to be the
same for objects that are equal when compared using the equality
operator ==
. Other than that there are no guarantees about
the hash codes. They will not be consistent between runs and
there are no distribution guarantees.
If a subclass overrides hashCode it should override the equality operator as well to maintain consistency.
int hashCode() => Util.getHashCode([item1, item2]);
noSuchMethod(String name, List args) #
noSuchMethod
is invoked when users invoke a non-existant method
on an object. The name of the method and the arguments of the
invocation are passed to noSuchMethod
. If noSuchMethod
returns a value, that value becomes the result of the original
invocation.
The default behavior of noSuchMethod
is to throw a
noSuchMethodError
.
external Dynamic noSuchMethod(String name, List args);
const Object() #
Creates a new Object
instance.
Object
instances have no meaningful state, and are only useful
through their identity. An Object
instance is equal to itself
only.
const Object();
toJson() #
Dynamic toJson() => { 'item1' : item1, 'item2' : item2 };
String toString() #
Returns a string representation of this object.
String toString() => "{item1: $item1, item2: $item2}";