15 lines
528 B
TypeScript
15 lines
528 B
TypeScript
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interface Promise<T> {
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then<A>(success?: (value: T) => Promise<A>): Promise<A>;
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then<B>(success?: (value: T) => B): Promise<B>;
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data: T;
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}
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var p: Promise<number> = null;
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var p2 = p.then(function (x) {
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return p;
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} );
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var x = p2.data; // number
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