export declare const isNumber: (val: unknown) => boolean;
export declare const getPercentUnit: (format: string | undefined) => string;
/**
 * 数字字符串相加
 * @param {*} v1
 * @param {*} v2
 * @returns
 */
export declare const strNumPlus: (v1: string | string[], v2: string | string[]) => string;
/**
 * 数字字符串相减
 * @param {*} v1
 * @param {*} v2
 * @returns
 */
export declare const strNumMinus: (v1: string, v2: string) => string;
/**
 * 处理百分比
 * @param {*} v
 * @param {*} type
 * @returns
 */
export declare const dealPercent: (v: string, type?: string) => string;
/**
 * 小数位处理
 * @param {*} v
 * @param {*} decimals
 * @param {*} type
 * @returns
 */
export declare const dealDecimals: (v: string, decimals: number, type: any) => string;
/**
 * 数字字符串相加
 * @param {*} v1
 * @param {*} v2
 * @returns
 */
export declare const strNumAddCalc: (v1: string, v2: string) => string;
/**
 * 过滤掉字符串中与数字无关的字符
 * @param value
 * @returns
 */
export declare const filterDigit: (value: string) => string;