Packages

c

scala.scalajs.js

WeakRef

class WeakRef[+T] extends Object

ECMAScript 2021

A WeakRef object lets you hold a weak reference to another object, without preventing that object from getting garbage-collected.

MDN

T

unconstrained, but the constructor will throw a TypeError if targetObject is not an Object.

Annotations
@JSType() @native() @JSGlobal()
Linear Supertypes
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. WeakRef
  2. Object
  3. Any
  4. AnyRef
  5. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new WeakRef(targetObject: T)

    targetObject

    An object whose weak reference contained by an instance of WeakRef.

Value Members

  1. final def !=(arg0: scala.Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from WeakRef[T] to any2stringadd[WeakRef[T]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (WeakRef[T], B)
    Implicit
    This member is added by an implicit conversion from WeakRef[T] to ArrowAssoc[WeakRef[T]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: scala.Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  8. def deref[S >: T](): UndefOr[S]

    The target object of the WeakRef, or undefined if the object has been garbage-collected.

  9. def ensuring(cond: (WeakRef[T]) ⇒ Boolean, msg: ⇒ scala.Any): WeakRef[T]
    Implicit
    This member is added by an implicit conversion from WeakRef[T] to Ensuring[WeakRef[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: (WeakRef[T]) ⇒ Boolean): WeakRef[T]
    Implicit
    This member is added by an implicit conversion from WeakRef[T] to Ensuring[WeakRef[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean, msg: ⇒ scala.Any): WeakRef[T]
    Implicit
    This member is added by an implicit conversion from WeakRef[T] to Ensuring[WeakRef[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: Boolean): WeakRef[T]
    Implicit
    This member is added by an implicit conversion from WeakRef[T] to Ensuring[WeakRef[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. def equals(arg0: scala.Any): Boolean
    Definition Classes
    AnyRef → Any
  15. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  16. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  17. def hasOwnProperty(v: String): Boolean

    Tests whether this object has the specified property as a direct property.

    Tests whether this object has the specified property as a direct property.

    Unlike js.Object.hasProperty, this method does not check down the object's prototype chain.

    MDN

    Definition Classes
    Object
  18. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  19. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  20. def isPrototypeOf(v: Object): Boolean

    Tests whether this object is in the prototype chain of another object.

    Tests whether this object is in the prototype chain of another object.

    Definition Classes
    Object
  21. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  22. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  23. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  24. def propertyIsEnumerable(v: String): Boolean

    Tests whether the specified property in an object can be enumerated by a call to js.Object.properties, with the exception of properties inherited through the prototype chain.

    Tests whether the specified property in an object can be enumerated by a call to js.Object.properties, with the exception of properties inherited through the prototype chain.

    If the object does not have the specified property, this method returns false.

    MDN

    Definition Classes
    Object
  25. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  26. def toLocaleString(): String
    Definition Classes
    Object
  27. def toString(): String
    Definition Classes
    AnyRef → Any
  28. def valueOf(): scala.Any
    Definition Classes
    Object
  29. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  30. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  31. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  32. def [B](y: B): (WeakRef[T], B)
    Implicit
    This member is added by an implicit conversion from WeakRef[T] to ArrowAssoc[WeakRef[T]] 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 WeakRef[T] to StringFormat[WeakRef[T]] 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 Object

Inherited from Any

Inherited from AnyRef

Inherited from scala.Any

Inherited by implicit conversion any2stringadd from WeakRef[T] to any2stringadd[WeakRef[T]]

Inherited by implicit conversion StringFormat from WeakRef[T] to StringFormat[WeakRef[T]]

Inherited by implicit conversion Ensuring from WeakRef[T] to Ensuring[WeakRef[T]]

Inherited by implicit conversion ArrowAssoc from WeakRef[T] to ArrowAssoc[WeakRef[T]]

Ungrouped