Packages

  • package root
    Definition Classes
    root
  • package scala
    Definition Classes
    root
  • package scalajs
    Definition Classes
    scala
  • package js

    Types, methods and values for interoperability with JavaScript libraries.

    Types, methods and values for interoperability with JavaScript libraries.

    This package is only relevant to the Scala.js compiler, and should not be referenced by any project compiled to the JVM.

    Guide

    General documentation on Scala.js is available at http://www.scala-js.org/doc/.

    Overview

    The trait js.Any is the root of the hierarchy of JavaScript types. This package defines important subtypes of js.Any that are defined in the standard library of ECMAScript 5.1 (or ES 6, with a label in the documentation), such as js.Object, js.Array and js.RegExp.

    Implicit conversions to and from standard Scala types to their equivalent in JavaScript are provided. For example, from Scala functions to JavaScript functions and back.

    The most important subtypes of js.Any declared in this package are:

    The trait js.Dynamic is a special subtrait of js.Any. It can represent any JavaScript value in a dynamically-typed way. It is possible to call any method and read and write any field of a value of type js.Dynamic.

    There are no explicit definitions for JavaScript primitive types, as one could expect, because the corresponding Scala types stand in their stead:

    • Boolean is the type of primitive JavaScript booleans
    • Double is the type of primitive JavaScript numbers
    • String is the type of primitive JavaScript strings (or null)
    • Unit is the type of the JavaScript undefined value
    • Null is the type of the JavaScript null value

    js.UndefOr gives a scala.Option-like interface where the JavaScript value undefined takes the role of None.

    A | B is an unboxed pseudo-union type, suitable to type values that admit several unrelated types in facade types.

    Definition Classes
    scalajs
  • object |
    Definition Classes
    js
  • Evidence
  • EvidenceLowPrioImplicits
  • EvidenceLowestPrioImplicits
  • UnionOps

object Evidence extends EvidenceLowPrioImplicits

Ordering
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Inherited
  1. Evidence
  2. EvidenceLowPrioImplicits
  3. EvidenceLowestPrioImplicits
  4. AnyRef
  5. Any
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Visibility
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Value Members

  1. final def !=(arg0: scala.Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: scala.Any): Boolean
    Definition Classes
    AnyRef → Any
  4. implicit def allSubtypes[A1, A2, B](implicit ev1: Evidence[A1, B], ev2: Evidence[A2, B]): Evidence[|[A1, A2], B]

    If A1 <: B and A2 <: B, then A1 | A2 <: B.

  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. implicit def base[A]: Evidence[A, A]

    A <: A.

  7. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  8. implicit def contravariant[F[-_], A, B](implicit ev: Evidence[B, A]): Evidence[F[A], F[B]]

    Given a contravariant type constructor F[-_], if B <: A, then F[A] <: F[B].

    Given a contravariant type constructor F[-_], if B <: A, then F[A] <: F[B].

    Definition Classes
    EvidenceLowestPrioImplicits
  9. implicit def covariant[F[+_], A, B](implicit ev: Evidence[A, B]): Evidence[F[A], F[B]]

    Given a covariant type constructor F[+_], if A <: B, then F[A] <: F[B].

    Given a covariant type constructor F[+_], if A <: B, then F[A] <: F[B].

    Definition Classes
    EvidenceLowestPrioImplicits
  10. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  11. def equals(arg0: scala.Any): Boolean
    Definition Classes
    AnyRef → Any
  12. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  13. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
  14. def hashCode(): Int
    Definition Classes
    AnyRef → Any
  15. implicit def intDouble: Evidence[Int, Double]

    Int <: Double, because that's true in Scala.js.

    Int <: Double, because that's true in Scala.js.

    Definition Classes
    EvidenceLowPrioImplicits
  16. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  17. implicit def left[A, B1, B2](implicit ev: Evidence[A, B1]): Evidence[A, |[B1, B2]]

    If A <: B1, then A <: B1 | B2.

    If A <: B1, then A <: B1 | B2.

    Definition Classes
    EvidenceLowPrioImplicits
  18. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  19. final def notify(): Unit
    Definition Classes
    AnyRef
  20. final def notifyAll(): Unit
    Definition Classes
    AnyRef
  21. implicit def right[A, B1, B2](implicit ev: Evidence[A, B2]): Evidence[A, |[B1, B2]]

    If A <: B2, then A <: B1 | B2.

    If A <: B2, then A <: B1 | B2.

    Definition Classes
    EvidenceLowestPrioImplicits
  22. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  23. def toString(): String
    Definition Classes
    AnyRef → Any
  24. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  25. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  26. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from EvidenceLowPrioImplicits

Inherited from EvidenceLowestPrioImplicits

Inherited from AnyRef

Inherited from scala.Any

Ungrouped