UN Six Official Languages Checker

Check named six UN official languages by explicit ISO639-1codes; zh denotes Chinese macro-language, not guarantee every variety is an official interpretation language. Caller establishes language, dialect, method and reference context; no automatic identity or universal language-wide claim.

Description

The United Nations has six official languages: Arabic, Chinese, English, French, Russian and Spanish.

The United Nations has six official languages: Arabic, Chinese, English, French, Russian and Spanish.^{[1, 2]}

A code comparison checks membership in this bounded set rather than fluency or official status elsewhere.

When to use UN Six Official Languages Checker

Use this tool to calculate or review the supplied observations under the stated rules. Specify the language variety, analysis, source edition and population or inventory definition.

How to use UN Six Official Languages Checker and understand its results

Specify the language variety, analysis, source edition and population or inventory definition.
Enter languageIso6391Codes, using the field meanings and rules below, then run the tool.
Read unOfficialLanguageFlags, nonOfficialInputCodes, using the output meanings and calculation rules below.
Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.

Input field	Meaning	Value type	Requirement
languageIso6391Codes	Language iso6391 codes	list of string	Required

Supply a list of two-letter lowercase strings. Validate that every string matches the two-letter format, then mark membership in ar, zh, en, fr, ru, es. Preserve input order and duplicates; return parallel flags and nonofficial code entries. An empty list is valid.

official_i=code_i∈{ar,zh,en,fr,ru,es}?1:0; nonOfficial=filter(codes,official=0)

Use the matching field units and the exact boundary, ordering and reference rules above.

Output field	Meaning	Value type
unOfficialLanguageFlags	Un official language flags	list of number
nonOfficialInputCodes	Non official input codes	list of string

json

{
  "input": {
    "languageIso6391Codes": [
      "en",
      "es",
      "de"
    ]
  },
  "output": {
    "unOfficialLanguageFlags": [
      1,
      1,
      0
    ],
    "nonOfficialInputCodes": [
      "de"
    ]
  }
}

Limitations and assumptions

Well-formed strings are not validated against the complete ISO language-code registry. zh represents Chinese at the table's language level, not one particular Chinese variety.

Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Lists and matrices must be dense, without missing cells. Numeric lists allow at most 10000 entries; ordinary string lists allow at most 128 strings of 128 UTF-16 units each; numeric matrices allow at most 128 rows and 128 columns, subject to narrower requirements above.

Alternative or Complementary methods

For a related step, use Countries Count By Official Language Lookup: Official-language status is defined by jurisdiction and date, and unresolved records are different from known negative status. For a complementary comparison, use First Day of Week Locale Lookup: The first weekday is a locale convention rather than a property of an individual date.

References

UN Six Official Languages Checker — tool.io
Six official United Nations languages — United Nations

Similar or alternative tools

Countries Count By Official Language Lookup
Official-language status is defined by jurisdiction and date, and unresolved records are different from known negative status.
First Day of Week Locale Lookup
The first weekday is a locale convention rather than a property of an individual date.