Tuple2

final case class Tuple2[@specialized(Int, Long, Double, Char, Boolean) +T1, @specialized(Int, Long, Double, Char, Boolean) +T2](_1: T1, _2: T2) extends Product2[T1, T2]

A tuple of 2 elements; the canonical representation of a scala.Product2.

Value parameters:
_1

Element 1 of this Tuple2

_2

Element 2 of this Tuple2

Constructor:

Create a new tuple with 2 elements. Note that it is more idiomatic to create a Tuple2 via (t1, t2)

Source:
Tuple2.scala
trait Product2[T1, T2]
trait Tuple
trait Product
trait Equals
class Object
trait Matchable
class Any

Value members

Concrete methods

def swap: (T2, T1)

Swaps the elements of this Tuple.

Swaps the elements of this Tuple.

Returns:

a new Tuple where the first element is the second element of this Tuple and the second element is the first element of this Tuple.

Source:
Tuple2.scala
override def toString(): String
Definition Classes
Source:
Tuple2.scala

Inherited methods

inline def *:[H, This >: (T1, T2) <: Tuple](x: H): H *: This

Return a new tuple by prepending the element to this tuple.

Return a new tuple by prepending the element to this tuple. This operation is O(this.size)

Inherited from:
Tuple
Source:
Tuple.scala
inline def ++[This >: (T1, T2) <: Tuple](that: Tuple): Concat[This, that]

Return a new tuple by concatenating this tuple with that tuple.

Return a new tuple by concatenating this tuple with that tuple. This operation is O(this.size + that.size)

Inherited from:
Tuple
Source:
Tuple.scala
inline def :*[This >: (T1, T2) <: Tuple, L](x: L): Append[This, L]

Return a copy of this tuple with an element appended

Return a copy of this tuple with an element appended

Inherited from:
Tuple
Source:
Tuple.scala
inline def apply[This >: (T1, T2) <: NonEmptyTuple](n: Int): Elem[This, n]

Get the i-th element of this tuple.

Get the i-th element of this tuple. Equivalent to productElement but with a precise return type.

Inherited from:
NonEmptyTuple
Source:
Tuple.scala
inline def drop[This >: (T1, T2) <: Tuple](n: Int): Drop[This, n]

Given a tuple (a1, ..., am), returns the tuple (an+1, ..., am) consisting all its elements except the first n ones.

Given a tuple (a1, ..., am), returns the tuple (an+1, ..., am) consisting all its elements except the first n ones.

Inherited from:
Tuple
Source:
Tuple.scala
inline def head[This >: (T1, T2) <: NonEmptyTuple]: Head[This]

Get the head of this tuple

Get the head of this tuple

Inherited from:
NonEmptyTuple
Source:
Tuple.scala
inline def init[This >: (T1, T2) <: NonEmptyTuple]: Init[This]

Get the initial part of the tuple without its last element

Get the initial part of the tuple without its last element

Inherited from:
NonEmptyTuple
Source:
Tuple.scala
inline def last[This >: (T1, T2) <: NonEmptyTuple]: Last[This]

Get the last of this tuple

Get the last of this tuple

Inherited from:
NonEmptyTuple
Source:
Tuple.scala
inline def map[F[_]](f: [t] => (x$1: t) => F[t]): Map[(T1, T2), F]

Called on a tuple (a1, ..., an), returns a new tuple (f(a1), ..., f(an)).

Called on a tuple (a1, ..., an), returns a new tuple (f(a1), ..., f(an)). The result is typed as (F[A1], ..., F[An]) if the tuple type is fully known. If the tuple is of the form a1 *: ... *: Tuple (that is, the tail is not known to be the cons type.

Inherited from:
Tuple
Source:
Tuple.scala
override def productArity: Int

The arity of this product.

The arity of this product.

Returns:

2

Definition Classes
Inherited from:
Product2
Source:
Product2.scala
@throws(scala.Predef.classOf[scala.IndexOutOfBoundsException])
override def productElement(n: Int): Any

Returns the n-th projection of this product if 0 <= n < productArity, otherwise throws an IndexOutOfBoundsException.

Returns the n-th projection of this product if 0 <= n < productArity, otherwise throws an IndexOutOfBoundsException.

Value parameters:
n

number of the projection to be returned

Returns:

same as ._(n+1), for example productElement(0) is the same as ._1.

Throws:
IndexOutOfBoundsException

if the n is out of range(n < 0 || n >= 2).

Definition Classes
Inherited from:
Product2
Source:
Product2.scala

An iterator over the names of all the elements of this product.

An iterator over the names of all the elements of this product.

Inherited from:
Product
Source:
Product.scala

An iterator over all the elements of this product.

An iterator over all the elements of this product.

Returns:

in the default implementation, an Iterator[Any]

Inherited from:
Product
Source:
Product.scala
inline def size[This >: (T1, T2) <: Tuple]: Size[This]

Return the size (or arity) of the tuple

Return the size (or arity) of the tuple

Inherited from:
Tuple
Source:
Tuple.scala
inline def splitAt[This >: (T1, T2) <: Tuple](n: Int): (This, n)

Given a tuple (a1, ..., am), returns a pair of the tuple (a1, ..., an) consisting of the first n elements, and the tuple (an+1, ..., am) consisting of the remaining elements.

Given a tuple (a1, ..., am), returns a pair of the tuple (a1, ..., an) consisting of the first n elements, and the tuple (an+1, ..., am) consisting of the remaining elements.

Inherited from:
Tuple
Source:
Tuple.scala
inline def tail[This >: (T1, T2) <: NonEmptyTuple]: Tail[This]

Get the tail of this tuple.

Get the tail of this tuple. This operation is O(this.size)

Inherited from:
NonEmptyTuple
Source:
Tuple.scala
inline def take[This >: (T1, T2) <: Tuple](n: Int): Take[This, n]

Given a tuple (a1, ..., am), returns the tuple (a1, ..., an) consisting of its first n elements.

Given a tuple (a1, ..., am), returns the tuple (a1, ..., an) consisting of its first n elements.

Inherited from:
Tuple
Source:
Tuple.scala
inline def toArray: Array[Object]

Create a copy this tuple as an Array

Create a copy this tuple as an Array

Inherited from:
Tuple
Source:
Tuple.scala
inline def toIArray: IArray[Object]

Create a copy this tuple as an IArray

Create a copy this tuple as an IArray

Inherited from:
Tuple
Source:
Tuple.scala
inline def toList: List[Union[(T1, T2)]]

Create a copy this tuple as a List

Create a copy this tuple as a List

Inherited from:
Tuple
Source:
Tuple.scala
inline def zip[This >: (T1, T2) <: Tuple, T2 <: Tuple](t2: T2): Zip[This, T2]

Given two tuples, (a1, ..., an) and (a1, ..., an), returns a tuple ((a1, b1), ..., (an, bn)).

Given two tuples, (a1, ..., an) and (a1, ..., an), returns a tuple ((a1, b1), ..., (an, bn)). If the two tuples have different sizes, the extra elements of the larger tuple will be disregarded. The result is typed as ((A1, B1), ..., (An, Bn)) if at least one of the tuple types has a EmptyTuple tail. Otherwise the result type is (A1, B1) *: ... *: (Ai, Bi) *: Tuple

Inherited from:
Tuple
Source:
Tuple.scala