Structs
The 
Intl.Collator object is a constructor for collators, objects
that enable language sensitive string comparison.The 
Intl.DateTimeFormat object is a constructor for objects
that enable language-sensitive date and time formatting.The 
Intl.NumberFormat object is a constructor for objects
that enable language sensitive number formatting.The 
Intl.PluralRules object is a constructor for objects
that enable plural sensitive formatting and plural language rules.The 
Intl.RelativeTimeFormat object is a constructor for objects
that enable language-sensitive relative time formatting.Functions
The 
Intl.getCanonicalLocales() method returns an array containing
the canonical locale names. Duplicates will be omitted and elements
will be validated as structurally valid language tags.