Interface CollatorOptions

interface CollatorOptions {
    caseFirst?: "upper" | "lower" | "false";
    collation?:
        | "big5han"
        | "compat"
        | "dict"
        | "direct"
        | "ducet"
        | "emoji"
        | "eor"
        | "gb2312"
        | "phonebk"
        | "phonetic"
        | "pinyin"
        | "reformed"
        | "searchjl"
        | "stroke"
        | "trad"
        | "unihan"
        | "zhuyin";
    ignorePunctuation?: boolean;
    localeMatcher?: "lookup"
    | "best fit";
    numeric?: boolean;
    sensitivity?: "base" | "accent" | "case" | "variant";
    usage?: "sort" | "search";
}