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@@ -86,3 +86,11 @@ const fictionBookTitles = GetBookTitlesByCategory(Category.Fiction);
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fictionBookTitles.forEach((val, idx, arr) => console.log(`${++idx} ${val}.`));
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fictionBookTitles.forEach((val, idx, arr) => console.log(`${++idx} ${val}.`));
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console.log(GetBookById(2));
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console.log(GetBookById(2));
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+
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+function PublicationMessage(year: number): string {
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+ return year.toLocaleString();
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+}
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+
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+type publisherFunc = (y: number) => string;
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+let publishFunc: publisherFunc = PublicationMessage;
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+
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