import moment from 'moment';
export declare const numUtil: {
    randomInt(len: number): number;
};
export declare const strUtil: {
    /**
     * 解析db uri
     * @param uri
     */
    parseDBUri: (uri: string) => {
        dialect: string;
        host: string;
        port: number;
        username: string;
        password: string;
        database: string;
    };
    isJsonStr(str: string): boolean;
    safeIntNumber(val?: string): number | undefined;
    /**
     * 支持中文相似比较
     */
    isSimilarCn(str1: string, str2: string, similarity?: number): boolean;
    safeBoolean(val?: string): boolean;
    cutStrTail(length: number, str: string): string;
    cleanColor(str: string): string;
    md5(str: string): string;
    hasUnicode(str: string): boolean;
    /**
     * 判断两个字符串是否相似
     * 默认75%相似度 返回true
     */
    isSimilar(str1: string, str2: string, opts?: {
        rate?: number;
        substringLength?: number;
        caseSensitive?: boolean;
    }): boolean;
    /**
     * markdown 转 html
     */
    md2html(markdown: string): string;
    /**
     * 转义特殊字符
     */
    sqlStr(str: string): string;
    /**
     * str2regExp
     * @param str
     */
    regExp(str: string): RegExp;
    /**
     * 随机字符串
     * @param len 随机字符串的长度
     * @param prefix 指定前缀
     */
    random(len: number, prefix?: string): string;
    /**
     * 随机的数字中文字符串
     * 方便用于OCR验证
     */
    randomCn(len?: number): string;
    /**
     * uid 生成器
     * @param n
     */
    uid(n: number): string;
    /**
     * 字符串分段
     * @param str
     * @param len
     */
    cutStrByLength(str: string, len: number): any[];
};
export declare const arrUtil: {
    sum(unmArr: number[]): number;
    /**
     * 查找最相似的一个
     * @param tar
     * @param list
     */
    getMostSimilar(tar: string, list: string[]): string;
    /**
     * 通过对比相似度，去重
     */
    getUniqBySimilar(list: string[], rate?: number): string[];
    getUniq(list: string[]): string[];
    /**
     * 对象数组按键去重，重复的只保留第一个
     */
    getUniqByKey<T extends Record<string, unknown>>(list: T[], key: string): T[];
};
export declare const objUtil: {
    /**
     * 查找json中符合要求的对象
     * @param tar json
     * @param k 指定键值
     * @param filterFn 过滤函数
     * @return {*[]} result
     */
    search(tar: unknown, k: string, filterFn?: (item: unknown) => boolean): unknown[];
    /**
     * 判断正则是否合法
     */
    isRegExp(pat: string): boolean;
    /**
     * 清空所有值为null或undefined的键，默认保留''
     * @param json
     * @param keepEmptyStr
     */
    clean(json: Record<string, unknown>, keepEmptyStr?: boolean): Record<string, unknown>;
    cleanKey(json: Record<string, unknown>, k: string): Record<string, unknown>;
    isObj(obj: unknown): boolean;
    /**
     * 判断是否为异步函数
     * @param func
     */
    isAsyncFunc(func: unknown): boolean;
};
export declare const dateUtil: {
    mm: typeof moment;
    getTime(hours?: number, sec?: boolean): number;
    humanizeDuration(begin: Date, end?: number): string;
    isWorkDay(d?: Date): boolean;
    isFriday(d?: Date): boolean;
    isMonthEnd(d?: Date): boolean;
};