is-language-code

Is given string a language code (as per IANA)
v5.0.15 URL: https://unpkg.com/is-language-code@5.0.15/dist/is-language-code.esm.js
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checkcodecodesianaietfislangreflanguagelookupregistryrfcrfc 5646seostandardsvalidvalidate

gfm-code-blocks

Extract gfm (GitHub Flavored Markdown) fenced code blocks from a string.
v1.0.0 URL: https://unpkg.com/gfm-code-blocks@1.0.0/index.js
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backtickblockblockscodeexecexpressionextractfencefencedfencesflavorflavoredgfmgithubinlinelanglanguagemarkdownmarkedmatchmatchesmdparsepatternpatternsreregexregexpregularrenderreplacereplacement

locale-code

locale code based on iso-639-1 and iso-3166-1
v2.0.2 URL: https://unpkg.com/locale-code@2.0.2/build/index.js
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localei18nlanguage

windows-locale

Windows Language Code Identifier (LCID) for JavaScript
v1.1.3 URL: https://unpkg.com/windows-locale@1.1.3/index.json
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codei18nlanguagelanguageslcidlocalelocalestagwindows

iso-639-3-to-1

Convert iso 639-3 to 639-1 language code
v1.0.0 URL: https://unpkg.com/iso-639-3-to-1@1.0.0/index.js
OpenBrowse Files
iso6396391languageconvertcodelanglanguagecodes