Because asin is a static method of Math, you always use it as Math.asin, rather than as a method of a Math object you created (Math is not a constructor). Examples Using Math.asin.
Many hacks and features depend on knowing aproduct’s Amazon ASIN; here are a few ways to track itdown.
ASIN stands for AmazonStandard Item Number, and every product Amazon sells has one. It’s anumber that’s unique to Amazon, and it is at the center of the Amazonuniverse. Many pages and features rely on the ASIN, so the firstskill needed in tweaking Amazon is the ability to hunt down andgather ASINs.
![Asin Asin](https://www.hellotax.com/wp-content/uploads/2019/08/ASIN-Amazon-Product-Details.png)
Finding the ASIN for abook is easy because it’s the same as the ISBN.ISBN stands for International Standard BookNumber, and is a unique numerical ID given to every book publishedsince 1972. The key word is standard, becausethe ISBN allows the book to be identified across varied systems.Libraries, publishers, bookstores, and anyone who handles books useISBNs to identify them. Not only does each book have a unique ISBN,but each edition of the book has its own ISBN. That way there’s neverconfusion between the hardback and paperback versions of a book.
So where is this magical ISBN number? Turn this book around, look atthe back cover, and find the UPC barcode on the back. Usually printedjust above the UPC is “ISBN” followed by 10 digits, as in Figure 1-2.
Figure 1-2. UPC symbol with ISBN highlighted
You can also usually find the ISBN printed somewhere on the copyrightpage at the front of the book. Sometimes the digits are separated bydashes, but only the numbers are important. This book’s ISBN is0-596-00542-3.
Finding ASINs for other products, such as DVDs, CDs, or even toys,isn’t quite as straightforward. Amazon doesn’t use any standardmethod of identification for other products, so each ASIN is uniqueto Amazon. A quick way to find the ASIN is to search for the item onAmazon and go to its product detail page. The ASIN willbe printed on the page, as shown in Figure 1-3.
Figure 1-3. ASIN listed in Amazon Product Details
If the ASIN can’t be found anywhere on the page, you can always findit in the URL. Examine the address of anyproduct detail page, and you’ll likely find a series of 10 lettersand numbers separated from other sections of the URL by slashes.They’re often preceded by ASIN, as in Figure 1-4.
![Asin Asin](/uploads/1/2/4/7/124711658/863013876.jpg)
Figure 1-4. Amazon Product Detail URL
ISBN
The International Standard Book Number (ISBN) is a unique commercial book identifier barcode. Each ISBN code identifies uniquely a book. ISBN have either 10 or 13 digits. All ISBN assigned after 1 Jan 2007 have 13 digits. Typically, the ISBN is printed on the back cover of the book.
For example, the ISBN code for J.K.Rowling's 'Harry Potter and the Deathly Hallows', Adult Edition, Paperback, UK edition is 978-0747595823, and this code identifies uniquely this book and edition.
ASIN
Amazon Standard Identification Numbers (ASINs) are unique blocks of 10 letters and/or numbers that identify items. You can find the ASIN on the item's product information page at Amazon.co.uk. For books, the ASIN is the same as the ISBN number, but for all other products a new ASIN is created when the item is uploaded to our catalogue. You will find an item's ASIN on the product detail page alongside further details relating to the item, which may include information such as size, number of pages (if it's a book) or number of discs (if it's a CD).
ASINs can be used to search for items in our catalogue. If you know the ASIN or ISBN of the item you are looking for, simply type it into the search box (which can be found near the top of most pages), hit the 'Go' button and, if the item is listed in our catalogue, it will appear in your search results.
For example, the ASIN for Hasbro's 'Monopoly' game is B00005N5PF.
The International Standard Book Number (ISBN) is a unique commercial book identifier barcode. Each ISBN code identifies uniquely a book. ISBN have either 10 or 13 digits. All ISBN assigned after 1 Jan 2007 have 13 digits. Typically, the ISBN is printed on the back cover of the book.
For example, the ISBN code for J.K.Rowling's 'Harry Potter and the Deathly Hallows', Adult Edition, Paperback, UK edition is 978-0747595823, and this code identifies uniquely this book and edition.
ASIN
Amazon Standard Identification Numbers (ASINs) are unique blocks of 10 letters and/or numbers that identify items. You can find the ASIN on the item's product information page at Amazon.co.uk. For books, the ASIN is the same as the ISBN number, but for all other products a new ASIN is created when the item is uploaded to our catalogue. You will find an item's ASIN on the product detail page alongside further details relating to the item, which may include information such as size, number of pages (if it's a book) or number of discs (if it's a CD).
ASINs can be used to search for items in our catalogue. If you know the ASIN or ISBN of the item you are looking for, simply type it into the search box (which can be found near the top of most pages), hit the 'Go' button and, if the item is listed in our catalogue, it will appear in your search results.
For example, the ASIN for Hasbro's 'Monopoly' game is B00005N5PF.