Module:Sandbox/Mr. Stradivarius/Check ISO 639-1/doc
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| icon | This is a documentation subpage for Module:Sandbox/Mr. Stradivarius/Check ISO 639-1. It may contain usage information, categories and other content that is not part of the original module page. |
| File:Ambox warning blue construction.svg | This module is rated as pre-alpha. It is incomplete and may or may not be in active development. Do not use it in article namespace pages. A module remains in pre-alpha until its developer, or another editor who adopts it if it is abandoned for some time, considers the basic structure complete. |
This module checks whether the code passed to the first positional parameter is a valid ISO 639-1 language code.