class Promise[+A] extends Object with Thenable[A]
ECMAScript 6 Promise of an asynchronous result.
Attention! The nature of this class, from the ECMAScript specification, makes it inherently un-typeable, because it is not type parametric.
The signatures of the constructor and the methods then and catch are
only valid provided that the values of A and B are not
Thenables.
We recommend to use Scala's Futures instead of Promise as much as
possible. A Promise can be converted to a Future with .toFuture and
back with .toJSPromise (provided by JSConverters).
With
import scala.scalajs.js.Thenable.Implicits._ you can implicitly convert a Promise to a Future, and therefore you can
directly use the methods of Future on Promises.
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final
def
!=(arg0: scala.Any): Boolean
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final
def
##(): Int
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- def +(other: String): String
- def ->[B](y: B): (Promise[A], B)
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final
def
==(arg0: scala.Any): Boolean
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final
def
asInstanceOf[T0]: T0
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- def catch[B >: A](onRejected: UndefOr[Function1[scala.Any, |[B, Thenable[B]]]] = js.undefined): Promise[B]
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def
clone(): AnyRef
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- protected[lang]
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- @throws( ... ) @native()
- def ensuring(cond: (Promise[A]) ⇒ Boolean, msg: ⇒ scala.Any): Promise[A]
- def ensuring(cond: (Promise[A]) ⇒ Boolean): Promise[A]
- def ensuring(cond: Boolean, msg: ⇒ scala.Any): Promise[A]
- def ensuring(cond: Boolean): Promise[A]
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final
def
eq(arg0: AnyRef): Boolean
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def
equals(arg0: scala.Any): Boolean
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def
finalize(): Unit
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- def formatted(fmtstr: String): String
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final
def
getClass(): Class[_]
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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
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def
hashCode(): Int
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final
def
isInstanceOf[T0]: Boolean
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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.
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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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
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final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
- def then[B >: A](onFulfilled: Unit, onRejected: UndefOr[Function1[scala.Any, |[B, Thenable[B]]]]): Promise[B]
- def then[B](onFulfilled: Function1[A, |[B, Thenable[B]]], onRejected: UndefOr[Function1[scala.Any, |[B, Thenable[B]]]] = js.undefined): Promise[B]
-
def
toFuture: Future[A]
Converts the Thenable into a Scala Future.
Converts the Thenable into a Scala Future.
Unlike when calling the
thenmethods of Thenable, the resulting Future is always properly typed, and operations on it will be well-typed in turn.- Implicit
- This member is added by an implicit conversion from Promise[A] to ThenableOps[A] performed by method ThenableOps in scala.scalajs.js.Thenable.
- Definition Classes
- ThenableOps
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def
toLocaleString(): String
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- Object
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def
toString(): String
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def
valueOf(): scala.Any
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
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- def →[B](y: B): (Promise[A], B)