Template:Script/doc/id-unk/is-iso-alpha4
File:Test Template Info-Icon - Version (2).svg Template documentation
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- Returns input alpha4 when existing, <blank> when not existing (per #default).
- "Special ISO codes" (number 900-999) are NOT recognised here (Qaaa..Qabx, Zinh Zmth Zsye Zsym Zxxx Zyyy Zzzz).
- List of ISO codes as of 2021-02-17 (201 regular codes)
- >Adlm → Adlm
- >Aaaa →