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useValidLang (since v1.0.0)

Diagnostic Category: lint/a11y/useValidLang

Sources:

Ensure that the attribute passed to the lang attribute is a correct ISO language and/or country.

Examples

Section titled Examples

Invalid

Section titled Invalid
<html lang="lorem" />
a11y/useValidLang.js:1:12 lint/a11y/useValidLang ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Provide a valid value for the lang attribute.
  
  > 1 │ <html lang="lorem" />
      │            ^^^^^^^
    2 │ 
  
  ℹ Some of valid languages:
  
  - ab
  - aa
  - af
  - sq
  - am
  - ar
  - an
  - hy
  - as
  - ay
  - az
  - ba
  - eu
  - bn
  - dz
  

<html lang="en-babab" />
a11y/useValidLang.js:1:12 lint/a11y/useValidLang ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Provide a valid value for the lang attribute.
  
  > 1 │ <html lang="en-babab" />
      │            ^^^^^^^^^^
    2 │ 
  
  ℹ Some of valid countries:
  
  - AF
  - AL
  - DZ
  - AS
  - AD
  - AO
  - AI
  - AQ
  - AG
  - AR
  - AM
  - AW
  - AU
  - AT
  - AZ
  

<html lang="en-GB-typo" />
a11y/useValidLang.js:1:12 lint/a11y/useValidLang ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Provide a valid value for the lang attribute.
  
  > 1 │ <html lang="en-GB-typo" />
      │            ^^^^^^^^^^^^
    2 │

Valid

Section titled Valid
<Html lang="en-babab" />
Section titled Related links