@formatjs/intl-getcanonicallocales/src/types.d.ts

Intl.getCanonicalLocales polyfill

export interface UnicodeLocaleId {
    lang: UnicodeLanguageId;
    extensions: Array<UnicodeExtension | TransformedExtension | PuExtension | OtherExtension>;
}
export interface UnicodeLanguageId {
    lang: string;
    script?: string;
    region?: string;
    variants: string[];
}
export type KV = [string, string] | [string];
export interface Extension {
    type: string;
}
export interface UnicodeExtension extends Extension {
    type: 'u';
    keywords: KV[];
    attributes: string[];
}
export interface TransformedExtension extends Extension {
    type: 't';
    fields: KV[];
    lang?: UnicodeLanguageId;
}
export interface PuExtension extends Extension {
    type: 'x';
    value: string;
}
export interface OtherExtension extends Extension {
    type: 'a' | 'b' | 'c' | 'd' | 'e' | 'f' | 'g' | 'h' | 'i' | 'j' | 'k' | 'l' | 'm' | 'n' | 'o' | 'p' | 'q' | 'r' | 's' | 'v' | 'w' | 'y' | 'z';
    value: string;
}