RightProjection (original) (raw)
scala.util.Either.RightProjection
Projects an Either into a Right.
Because Either is already right-biased, this class is not normally needed. (It is retained in the library for now for easy cross-compilation between Scala 2.11 and 2.12.)
Attributes
Deprecated
[Since version 2.13.0] Either is now right-biased, calls to `right` should be removed
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Supertypes
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Returns false if Left or returns the result of the application of the given function to the Right value.
Returns false if Left or returns the result of the application of the given function to the Right value.
Right(12).right.exists(_ > 10) // true
Right(7).right.exists(_ > 10) // false
Left(12).right.exists(_ > 10) // false
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Returns None if this is a Left or if the given predicate p does not hold for the right value, otherwise, returns a Right.
Returns None if this is a Left or if the given predicate p does not hold for the right value, otherwise, returns a Right.
Right(12).right.filterToOption(_ > 10) // Some(Right(12))
Right(7).right.filterToOption(_ > 10) // None
Left(12).right.filterToOption(_ > 10) // None
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Binds the given function across Right.
Binds the given function across Right.
Value parameters
f
The function to bind across Right.
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Returns true if Left or returns the result of the application of the given function to the Right value.
Returns true if Left or returns the result of the application of the given function to the Right value.
Right(12).right.forall(_ > 10) // true
Right(7).right.forall(_ > 10) // false
Left(12).right.forall(_ > 10) // true
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Executes the given side-effecting function if this is a Right.
Executes the given side-effecting function if this is a Right.
Right(12).right.foreach(x => println(x)) // prints "12"
Left(12).right.foreach(x => println(x)) // doesn't print
Value parameters
f
The side-effecting function to execute.
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Returns the value from this Right or the given argument if this is a Left.
Returns the value from this Right or the given argument if this is a Left.
Right(12).right.getOrElse(17) // 12
Left(12).right.getOrElse(17) // 17
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The given function is applied if this is a Right.
The given function is applied if this is a Right.
Right(12).right.map(x => "flower") // Result: Right("flower")
Left(12).right.map(x => "flower") // Result: Left(12)
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Returns a Some containing the Right value if it exists or a None if this is a Left.
Returns a Some containing the Right value if it exists or a None if this is a Left.
Right(12).right.toOption // Some(12)
Left(12).right.toOption // None
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Returns a Seq containing the Right value if it exists or an empty Seq if this is a Left.
Returns a Seq containing the Right value if it exists or an empty Seq if this is a Left.
Right(12).right.toSeq // Seq(12)
Left(12).right.toSeq // Seq()
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Returns None if this is a Left or if the given predicate p does not hold for the right value, otherwise, returns a Right.
Returns None if this is a Left or if the given predicate p does not hold for the right value, otherwise, returns a Right.
Right(12).right.filter(_ > 10) // Some(Right(12))
Right(7).right.filter(_ > 10) // None
Left(12).right.filter(_ > 10) // None
Attributes
Deprecated
[Since version 2.13.0] Use `filterToOption`, which more accurately reflects the return type
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Returns the value from this Right or throws NoSuchElementException if this is a Left.
Returns the value from this Right or throws NoSuchElementException if this is a Left.
Right(12).right.get // 12
Left(12).right.get // NoSuchElementException
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Throws
Deprecated
[Since version 2.13.0] Use `Either.toOption.get` instead
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An iterator over the names of all the elements of this product.
An iterator over the names of all the elements of this product.
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Inherited from:
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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:
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