15 lines
609 B
TypeScript
15 lines
609 B
TypeScript
class Collection<T> {
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public add(x: T) { }
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}
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interface Utils {
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fold<T, S>(c?: Collection<T>, folder?: (s: S, t: T) => T, init?: S): T;
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mapReduce<T, U, V>(c: Collection<T>, mapper: (x: T) => U, reducer: (y: U) => V): Collection<V>;
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}
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var utils: Utils;
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var c = new Collection<string>();
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var r3 = utils.mapReduce(c, (x) => { return 1 }, (y) => { return new Date() });
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var r4 = utils.mapReduce(c, (x: string) => { return 1 }, (y: number) => { return new Date() });
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var f1 = (x: string) => { return 1 };
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var f2 = (y: number) => { return new Date() };
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var r5 = utils.mapReduce(c, f1, f2);
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