| Title |
Test
Find
ISBN 10 or 13
|
| Expression |
^(97(8|9))?\d{9}(\d|X)$ |
| Description |
Validates both ISBN 10 and ISBN 13 numbers, and confirms ISBN 13 numbers start with only 978 or 979. |
| Matches |
0672317249 | 9780672317248 |
| Non-Matches |
0-672-31724-9 | 5555555555555 |
| Author |
Rating:
Michael Fienen
|
| Source |
|
| Your Rating |
|
Title: does not validate checkdigit
Name: 0c
Date: 11/27/2023 1:52:50 PM
Comment:
title.
Title: does not validate checkdigit
Name: 0c
Date: 11/27/2023 1:52:46 PM
Comment:
title.
Title: overstating the case
Name: Anonymous Coward
Date: 3/2/2011 3:58:42 PM
Comment:
Saying this RE validates the ISBN overstates the case. "Validation" refers to making sure the check digit is correct. All this does is make sure there are 13 digits, and if 13, it starts with 978 or 979.
Title: overstating the case
Name: Anonymous Coward
Date: 3/2/2011 3:58:25 PM
Comment:
Saying this RE validates the ISBN overstates the case. "Validation" refers to making sure the check digit is correct. All this does is make sure there are 13 digits, and if 13, it starts with 978 or 979.
