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final class UndefOrOps[A] extends AnyVal

Linear Supertypes
AnyVal, scala.Any
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Inherited
  1. UndefOrOps
  2. AnyVal
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Value Members

  1. final def !=(arg0: scala.Any): Boolean
    Definition Classes
    Any
  2. final def ##(): Int
    Definition Classes
    Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from UndefOrOps[A] to any2stringadd[UndefOrOps[A]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (UndefOrOps[A], B)
    Implicit
    This member is added by an implicit conversion from UndefOrOps[A] to ArrowAssoc[UndefOrOps[A]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: scala.Any): Boolean
    Definition Classes
    Any
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. final def collect[B](pf: PartialFunction[A, B]): UndefOr[B]

    Returns the result of applying pf to this js.UndefOr's contained value, if this option is nonempty and pf is defined for that value.

    Returns the result of applying pf to this js.UndefOr's contained value, if this option is nonempty and pf is defined for that value. Returns js.undefined otherwise.

    pf

    the partial function.

    returns

    the result of applying pf to this js.UndefOr's value (if possible), or js.undefined.

    Annotations
    @inline()
  8. final def contains[A1 >: A](elem: A1): Boolean

    Tests whether the js.UndefOr contains a given value as an element.

    Tests whether the js.UndefOr contains a given value as an element.

    x.contains(y) differs from x == y only in the fact that it will return false when x and y are both undefined.

    elem

    the element to test.

    returns

    true if the js.UndefOr has an element that is equal (as determined by ==) to elem, false otherwise.

    Annotations
    @inline()
  9. def ensuring(cond: (UndefOrOps[A]) ⇒ Boolean, msg: ⇒ scala.Any): UndefOrOps[A]
    Implicit
    This member is added by an implicit conversion from UndefOrOps[A] to Ensuring[UndefOrOps[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: (UndefOrOps[A]) ⇒ Boolean): UndefOrOps[A]
    Implicit
    This member is added by an implicit conversion from UndefOrOps[A] to Ensuring[UndefOrOps[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean, msg: ⇒ scala.Any): UndefOrOps[A]
    Implicit
    This member is added by an implicit conversion from UndefOrOps[A] to Ensuring[UndefOrOps[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: Boolean): UndefOrOps[A]
    Implicit
    This member is added by an implicit conversion from UndefOrOps[A] to Ensuring[UndefOrOps[A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. final def exists(p: (A) ⇒ Boolean): Boolean

    Returns true if this option is nonempty and the predicate p returns true when applied to this js.UndefOr's value.

    Returns true if this option is nonempty and the predicate p returns true when applied to this js.UndefOr's value. Otherwise, returns false.

    p

    the predicate to test

    Annotations
    @inline()
  14. final def filter(p: (A) ⇒ Boolean): UndefOr[A]

    Returns this js.UndefOr if it is nonempty and applying the predicate p to this js.UndefOr's value returns true.

    Returns this js.UndefOr if it is nonempty and applying the predicate p to this js.UndefOr's value returns true. Otherwise, return js.undefined.

    p

    the predicate used for testing.

    Annotations
    @inline()
  15. final def filterNot(p: (A) ⇒ Boolean): UndefOr[A]

    Returns this js.UndefOr if it is nonempty and applying the predicate p to this js.UndefOr's value returns false.

    Returns this js.UndefOr if it is nonempty and applying the predicate p to this js.UndefOr's value returns false. Otherwise, return js.undefined.

    p

    the predicate used for testing.

    Annotations
    @inline()
  16. final def flatMap[B](f: (A) ⇒ UndefOr[B]): UndefOr[B]

    Returns the result of applying f to this js.UndefOr's value if this js.UndefOr is nonempty.

    Returns the result of applying f to this js.UndefOr's value if this js.UndefOr is nonempty. Returns js.undefined if this js.UndefOr is empty. Slightly different from map in that f is expected to return an js.UndefOr (which could be js.undefined).

    f

    the function to apply

    Annotations
    @inline()
    See also

    map

    foreach

  17. def flatten[B](implicit ev: <:<[A, UndefOr[B]]): UndefOr[B]
  18. final def fold[B](ifEmpty: ⇒ B)(f: (A) ⇒ B): B

    Returns the result of applying f to this js.UndefOr's value if the js.UndefOr is nonempty.

    Returns the result of applying f to this js.UndefOr's value if the js.UndefOr is nonempty. Otherwise, evaluates expression ifEmpty.

    ifEmpty

    the expression to evaluate if empty.

    f

    the function to apply if nonempty.

    Annotations
    @inline()
    Note

    This is equivalent to js.UndefOr map f getOrElse ifEmpty.

  19. final def forall(p: (A) ⇒ Boolean): Boolean

    Returns true if this option is empty or the predicate p returns true when applied to this js.UndefOr's value.

    Returns true if this option is empty or the predicate p returns true when applied to this js.UndefOr's value.

    p

    the predicate to test

    Annotations
    @inline()
  20. final def foreach[U](f: (A) ⇒ U): Unit

    Apply the given procedure f to the option's value, if it is nonempty.

    Apply the given procedure f to the option's value, if it is nonempty. Otherwise, do nothing.

    f

    the procedure to apply.

    Annotations
    @inline()
    See also

    map

    flatMap

  21. final def get: A

    Returns the option's value.

    Returns the option's value.

    Annotations
    @inline()
    Exceptions thrown

    java.util.NoSuchElementException if the option is empty.

    Note

    The option must be nonEmpty.

  22. def getClass(): Class[_ <: AnyVal]
    Definition Classes
    AnyVal → Any
  23. final def getOrElse[B >: A](default: ⇒ B): B

    Returns the option's value if the option is nonempty, otherwise return the result of evaluating default.

    Returns the option's value if the option is nonempty, otherwise return the result of evaluating default.

    default

    the default expression.

    Annotations
    @inline()
  24. final def isDefined: Boolean

    Returns true if the option is not undefined, false otherwise.

    Returns true if the option is not undefined, false otherwise.

    Annotations
    @inline()
  25. final def isEmpty: Boolean

    Returns true if the option is undefined, false otherwise.

    Returns true if the option is undefined, false otherwise.

    Annotations
    @inline()
  26. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  27. def iterator: collection.Iterator[A]

    Returns a singleton iterator returning the js.UndefOr's value if it is nonempty, or an empty iterator if the option is empty.

  28. final def map[B](f: (A) ⇒ B): UndefOr[B]

    Returns the result of applying f to this js.UndefOr's value if this js.UndefOr is nonempty.

    Returns the result of applying f to this js.UndefOr's value if this js.UndefOr is nonempty. Otherwise return js.undefined.

    f

    the function to apply

    Annotations
    @inline()
    Note

    This is similar to flatMap except here, f does not need to wrap its result in an js.UndefOr.

    See also

    flatMap

    foreach

  29. final def nonEmpty: Boolean

    Returns false if the option is js.undefined, true otherwise.

    Returns false if the option is js.undefined, true otherwise.

    Note

    Implemented here to avoid the implicit conversion to Iterable.

  30. final def orElse[B >: A](alternative: ⇒ UndefOr[B]): UndefOr[B]

    Returns this js.UndefOr if it is nonempty, otherwise return the result of evaluating alternative.

    Returns this js.UndefOr if it is nonempty, otherwise return the result of evaluating alternative.

    alternative

    the alternative expression.

    Annotations
    @inline()
  31. final def orNull[A1 >: A](implicit ev: <:<[Null, A1]): A1

    Returns the option's value if it is nonempty, or null if it is empty.

    Returns the option's value if it is nonempty, or null if it is empty. Although the use of null is discouraged, code written to use js.UndefOr must often interface with code that expects and returns nulls.

    Annotations
    @inline()
    Example: 

    1. val initalText: Option[String] = getInitialText
val textField = new JComponent(initalText.orNull,20)
  32. final def toLeft[X](right: ⇒ X): Either[A, X]

    Returns a Right containing the given argument right if this is empty, or a Left containing this js.UndefOr's value if this js.UndefOr is nonempty.

    Returns a Right containing the given argument right if this is empty, or a Left containing this js.UndefOr's value if this js.UndefOr is nonempty.

    right

    the expression to evaluate and return if this is empty

    Annotations
    @inline()
    See also

    toRight

  33. def toList: List[A]

    Returns a singleton list containing the js.UndefOr's value if it is nonempty, or the empty list if the js.UndefOr is empty.

  34. final def toOption: Option[A]

    Returns a Some containing this js.UndefOr's value if this js.UndefOr is nonempty, None otherwise.

    Returns a Some containing this js.UndefOr's value if this js.UndefOr is nonempty, None otherwise.

    Annotations
    @inline()
  35. final def toRight[X](left: ⇒ X): Either[X, A]

    Returns a Left containing the given argument left if this js.UndefOr is empty, or a Right containing this js.UndefOr's value if this is nonempty.

    Returns a Left containing the given argument left if this js.UndefOr is empty, or a Right containing this js.UndefOr's value if this is nonempty.

    left

    the expression to evaluate and return if this is empty

    Annotations
    @inline()
    See also

    toLeft

  36. def toString(): String
    Definition Classes
    Any
  37. final def withFilter(p: (A) ⇒ Boolean): WithFilter[A]

    Necessary to keep js.UndefOr from being implicitly converted to scala.collection.Iterable in for comprehensions.

    Necessary to keep js.UndefOr from being implicitly converted to scala.collection.Iterable in for comprehensions.

    Annotations
    @inline()
  38. def →[B](y: B): (UndefOrOps[A], B)
    Implicit
    This member is added by an implicit conversion from UndefOrOps[A] to ArrowAssoc[UndefOrOps[A]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Deprecated Value Members

  1. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from UndefOrOps[A] to StringFormat[UndefOrOps[A]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.12.16) Use formatString.format(value) instead of value.formatted(formatString), or use the f"" string interpolator. In Java 15 and later, formatted resolves to the new method in String which has reversed parameters.

Inherited from AnyVal

Inherited from scala.Any

Inherited by implicit conversion any2stringadd from UndefOrOps[A] to any2stringadd[UndefOrOps[A]]

Inherited by implicit conversion StringFormat from UndefOrOps[A] to StringFormat[UndefOrOps[A]]

Inherited by implicit conversion Ensuring from UndefOrOps[A] to Ensuring[UndefOrOps[A]]

Inherited by implicit conversion ArrowAssoc from UndefOrOps[A] to ArrowAssoc[UndefOrOps[A]]

Ungrouped