is-language-code

Is given string a language code (as per IANA)

MIT 88 个版本

check code codes iana ietf is langref language lookup registry rfc rfc 5646 seo standards valid validate

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安装

npm install is-language-code

yarn add is-language-code

pnpm add is-language-code

bun add is-language-code

README

is-language-code

Is given string a language code (as per IANA)

Install

This package is pure ESM. If you're not ready yet, install an older version of this program, 3.1.0 (npm i is-language-code@3.1.0).

npm i is-language-code

Quick Take

import { strict as assert } from "assert";

import { isLangCode } from "is-language-code";

assert.deepEqual(isLangCode("de-419-DE"), {
  res: false,
  message: 'Two region subtags, "419" and "de".',
});

assert.deepEqual(isLangCode("sr-Latn"), {
  res: true,
  message: null,
});

Documentation

Please visit codsen.com for a full description of the API. If you’re looking for the Changelog, it’s here. Also, try the GUI playground.

Contributing

To report bugs or request features or assistance, raise an issue on GitHub.

Licence

MIT License

codsen

版本列表

5.1.3 2026-01-15

5.1.0 2025-10-15

5.0.27 2025-10-12

5.0.26 2025-10-08

5.0.25 2025-10-07

5.0.16 2025-07-21

5.0.15 2025-03-02

5.0.12 2024-01-31

5.0.11 2024-01-05

5.0.10 2023-12-20

5.0.9 2023-09-11

5.0.8 2023-07-14

5.0.7 2023-05-21

5.0.6 2023-05-13

5.0.5 2023-04-12

5.0.4 2023-03-12

5.0.3 2022-12-22

5.0.2 2022-12-06

5.0.1 2022-12-06

5.0.0 2022-12-01

4.1.20 2022-11-03

4.1.19 2022-11-02

4.1.18 2022-10-31

4.1.17 2022-10-23

4.1.16 2022-10-22

4.1.15 2022-10-17

4.1.14 2022-10-16

4.1.13 2022-10-13

4.1.12 2022-10-13

4.1.11 2022-10-11

4.1.10 2022-10-05

4.1.9 2022-09-27

4.1.8 2022-09-27

4.1.7 2022-09-27

4.1.6 2022-09-22

4.1.5 2022-09-19

4.1.4 2022-09-11

4.1.3 2022-09-09

4.1.2 2022-09-05

4.1.1 2022-08-18

4.1.0 2022-08-12

4.0.15 2022-07-05

4.0.14 2022-06-16

4.0.13 2022-04-18

4.0.12 2022-01-22

4.0.11 2022-01-11

4.0.10 2021-12-24

4.0.7 2021-11-30

4.0.6 2021-11-22

4.0.5 2021-11-08

4.0.4 2021-11-04

4.0.3 2021-11-02

4.0.2 2021-09-20

4.0.1 2021-09-13

4.0.0 2021-09-09

3.1.0 2021-05-24

3.0.16 2021-04-14

3.0.15 2021-04-11

3.0.14 2021-04-04

3.0.13 2021-04-03

3.0.12 2021-03-31

3.0.11 2021-03-28

3.0.10 2021-03-25

3.0.9 2021-03-23

3.0.8 2021-03-14

3.0.7 2021-03-07

3.0.6 2021-02-27

3.0.5 2021-02-14

3.0.4 2021-02-09

3.0.3 2021-02-07

3.0.2 2021-01-28

3.0.1 2021-01-28

3.0.0 2021-01-23

2.0.0 2020-11-28

1.0.13 2020-11-10

1.0.12 2020-09-27

1.0.11 2020-09-24

1.0.10 2020-09-07

1.0.9 2020-08-16

1.0.8 2020-08-08

1.0.7 2020-05-08

1.0.6 2020-05-06

1.0.5 2020-04-26

1.0.4 2020-04-18

1.0.3 2020-04-13

1.0.2 2020-04-04

1.0.1 2020-01-27

1.0.0 2020-01-05