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.  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

    @inline()

22.  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.

23.  def getClass(): Class[_ <: AnyVal]

    Definition Classes

    AnyVal → Any

24.  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()

25.  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()

26.  final def isEmpty: Boolean

    Returns true if the option is undefined, false otherwise.

    Returns true if the option is undefined, false otherwise.

    Annotations

    @inline()

27.  final def isInstanceOf[T0]: Boolean

    Definition Classes

    Any

28.  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.

29.  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

30.  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.

31.  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()

32.  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)

33.  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

34.  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.

35.  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()

36.  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

37.  def toString(): String

    Definition Classes

    Any

38.  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()

39.  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