/book-collection-simple.js
Last active Jun 14, 2017
| class BookCollection { | |
| ... | |
| getByISBN(isbn) { | |
| return this.get({ | |
| isbn: isbn | |
| }).then(book => book.name) | |
| .catch(error => null); | |
| } | |
| ... | |
| } |
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