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Scala 3/scala/Tuple1

Tuple1

scala.Tuple1
final case class Tuple1[+T1](_1: T1) extends Product1[T1]

A tuple of 1 elements; the canonical representation of a scala.Product1.

Value parameters

_1

Element 1 of this Tuple1

Attributes

Constructor

Create a new tuple with 1 elements.

Source
Tuple1.scala
Graph
Supertypes
trait Serializable
trait Product1[T1]
class T1 *: EmptyTuple.type
trait Tuple
trait Product
trait Equals
class Object
trait Matchable
class Any
Show all

Members list

Value members

Concrete methods

override def toString(): String

Returns a string representation of the object.

Returns a string representation of the object.

The default representation is platform dependent.

Attributes

Returns

a string representation of the object.

Definition Classes
Any
Source
Tuple1.scala

Inherited methods

inline def *:[H, This >: this.type <: Tuple](x: H): H *: This

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

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

Attributes

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

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

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

Type parameters

This

the exact type of this tuple

Value parameters

that

the tuple to append to this tuple

Attributes

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

Returns a copy of this tuple with an element appended.

Returns a copy of this tuple with an element appended.

Attributes

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

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

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

Type parameters

This

the exact type of this tuple

Value parameters

n

the zero-based index of the element to retrieve

Attributes

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

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.

Type parameters

This

the exact type of this tuple

Value parameters

n

the number of elements to drop from the beginning

Attributes

Inherited from:
Tuple
Source
Tuple.scala
inline def head[This >: this.type <: Tuple]: Head[This]

Gets the head of this tuple.

Gets the head of this tuple.

Type parameters

This

the exact type of this tuple

Attributes

Inherited from:
Tuple
Source
Tuple.scala
inline def init[This >: this.type <: Tuple]: Init[This]

Gets the initial part of the tuple without its last element.

Gets the initial part of the tuple without its last element.

Type parameters

This

the exact type of this tuple

Attributes

Inherited from:
Tuple
Source
Tuple.scala
inline def last[This >: this.type <: Tuple]: Last[This]

Gets the last of this tuple.

Gets the last of this tuple.

Type parameters

This

the exact type of this tuple

Attributes

Inherited from:
Tuple
Source
Tuple.scala
inline def map[F[_]](f: [t] => t => F[t]): Map[this.type, F]

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. Otherwise the result type is F[A1] *: Tuple.

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. Otherwise the result type is F[A1] *: Tuple.

Type parameters

F

the type constructor applied to each element type

Attributes

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

The arity of this product.

The arity of this product.

Attributes

Returns

1

Definition Classes
Inherited from:
Product1
Source
Product1.scala
override def productElement(n: Int): Any

Returns the n-th projection of this product if 0 = 1).

Returns the n-th projection of this product if 0 = 1).

Attributes

Definition Classes
Inherited from:
Product1
Source
Product1.scala
def productElementNames: Iterator[String]

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

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

Attributes

Inherited from:
Product
Source
Product.scala
def productIterator: Iterator[Any]

An iterator over all the elements of this product.

An iterator over all the elements of this product.

Attributes

Returns

in the default implementation, an Iterator[Any]

Inherited from:
Product
Source
Product.scala
inline def reverse[This >: this.type <: Tuple]: Reverse[This]

Given a tuple (a1, ..., am), returns the reversed tuple (am, ..., a1) consisting all its elements.

Given a tuple (a1, ..., am), returns the reversed tuple (am, ..., a1) consisting all its elements.

Type parameters

This

the exact type of this tuple

Attributes

Inherited from:
Tuple
Source
Tuple.scala
inline def size[This >: this.type <: Tuple]: Size[This]

Returns the size (or arity) of the tuple.

Returns the size (or arity) of the tuple.

Type parameters

This

the exact type of this tuple

Attributes

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

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.

Type parameters

This

the exact type of this tuple

Value parameters

n

the number of elements in the first part of the split

Attributes

Inherited from:
Tuple
Source
Tuple.scala
inline def tail[This >: this.type <: Tuple]: Tail[This]

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

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

Type parameters

This

the exact type of this tuple

Attributes

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

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.

Type parameters

This

the exact type of this tuple

Value parameters

n

the number of elements to take from the beginning

Attributes

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

Creates a copy of this tuple as an Array.

Creates a copy of this tuple as an Array.

Attributes

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

Creates a copy of this tuple as an IArray.

Creates a copy of this tuple as an IArray.

Attributes

Inherited from:
Tuple
Source
Tuple.scala
inline def toList: List[Union[this.type]]

Creates a copy of this tuple as a List.

Creates a copy of this tuple as a List.

Attributes

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

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

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

Type parameters

T2

the type of the other tuple to zip with

This

the exact type of this tuple

Value parameters

t2

the tuple to zip with this tuple

Attributes

Inherited from:
Tuple
Source
Tuple.scala
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Copyright (c) 2002-2026, LAMP/EPFL
Copyright (c) 2002-2026, LAMP/EPFL