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[Mithril] Fix Stream#map signature (#36910)

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* Fix Stream.map signature

* Additional Stream#map test
This commit is contained in:
spacejack 2019-07-16 13:16:22 -04:00 committed by Andrew Branch
parent c58cffffd8
commit 11bce520dd
2 changed files with 8 additions and 3 deletions
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4
types/mithril/stream/index.d.ts vendored
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@ -5,9 +5,7 @@ declare namespace Stream {
/** Sets the value of the stream. */
(value: T): this;
/** Creates a dependent stream whose value is set to the result of the callback function. */
map(f: (current: T) => Stream<T> | T | void): Stream<T>;
/** Creates a dependent stream whose value is set to the result of the callback function. */
map<U>(f: (current: T) => Stream<U> | U): Stream<U>;
map<U>(f: (current: T) => U): Stream<U>;
/** This method is functionally identical to stream. It exists to conform to Fantasy Land's Applicative specification. */
of(val?: T): Stream<T>;
/** Apply. */

7
types/mithril/test/test-stream.ts
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@ -204,6 +204,13 @@ import { Stream } from 'mithril/stream';
console.assert(doubled() === 4);
}
{
const s = stream("a");
const t = s.map(() => 1);
const n = t() + 1;
console.assert(n === 2);
}
// scan
{