add ISSN validator + tests + documentation #1166
Merged
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International Standard Serial Number (ISSN) validator
"An ISSN is an 8-digit code used to identify newspapers, journals, magazines and periodicals of all kinds and on all media–print and electronic." -- issn.org
This PR adds a new
issn
validator, along with updating all translation files and tests. This validator is very similar to that of the ISBN so I believe all translations will be okay. The valid ISSNs used in the tests are examples taken from issn.org.Make sure that you've checked the boxes below before you submit PR:
@go-playground/validator-maintainers