import { ReactElement } from 'react';
export declare function noop(): void;
/**
 * @description: 确保目标是一个数组
 * @param target 目标对象
 * @return 原数组或新的数组
 */
export declare function toArray(target: any): any[];
/**
 * @description: 限定数值范围
 * @param {number} n 被限定的值
 * @param {number} min 最小值
 * @param {number} max 最大值
 * @return {number} 限定后的值
 */
export declare function minmax(n: number, min: number, max: number): number;
/**
 * @description: 获取小数位数
 * @param {number | string} n 要操作的数值
 * @return {number}
 */
export declare function getDecimalsLength(n: number | string): number;
/**
 * @description: 把一个数四舍五入到指定位数小数
 * @param {number} n 要操作的数值
 * @param {number} precision 精准度，即小数个数
 * @return {number}
 */
export declare function round(n: number, precision?: number): number;
/**
 * @description: 把一个数舍入到指定数的倍数
 * @param {number} n 要舍入的数值
 * @param {number} m 结果值的因数
 * @return {number}
 */
export declare function mround(n: number, m: number): number;
/**
 * @description: 生成唯一ID，用于设置元素的ID，以便获取
 * @param {string} prefix
 * @return {string}
 */
export declare function uniqid(prefix?: string): string;
/**
 * @description: 回流
 * @param {HTMLElement} el
 * @return {void}
 */
export declare function reflow(el: HTMLElement): void;
/**
 * @description: 获取阻尼值
 * @param {number} value
 * @param {number} min
 * @param {number} max
 * @param {number} damping
 * @return {number}
 */
export declare function getDampingValue(value: number, min: number, max: number, damping: number): number;
/**
 * @description: 获取矩形阻尼值
 * @param {number} offset 当前的偏移量
 * @param {number} areaSize 范围值
 * @param {number} viewSize 范围内某个视图尺寸值
 * @param {number} damping 阻尼系数
 * @return {number}
 */
export declare function getRectDampingValue(offset: number, areaSize: number, viewSize: number, damping: number): number;
/**
 * @description: 获取范围值
 * @param {number} offset 当前的偏移量
 * @param {number} areaSize 范围值
 * @param {number} viewSize 范围内某个视图尺寸值
 * @return {number}
 */
export declare function getInBoundValue(offset: number, areaSize: number, viewSize: number): number;
/**
 * @description: 获取溢出值范围
 * @param {number} overflow 最大溢出值
 * @param {number} areaSize 范围值
 * @param {number} viewSize 范围内某个视图尺寸值
 * @return {*}
 */
export declare function getOverflowRangeInArea(overflow: number, areaSize: number, viewSize: number): [number, number];
/**
 * @description: 扩散性遍历
 * @param array 要遍历的数组
 * @param callback 回调函数，接收当前元素、扩散性下标、迭代下标作为参数，
 *  如果返回true，则中止遍历
 * @param currIndex 遍历开始的下标
 * @param direction 开始遍历的方向
 * @return 扩散性下标、或开始下标
 */
export declare function spreadEach(array: any[], callback: (el: any, spreadIndex: number, index: number) => any, startIndex?: number, direction?: number): number;
/**
 * @description: 克隆对象
 * @param {any} target
 * @return {any}
 */
export declare function deepClone(target: any): any;
/**
 * @description: 深度合并其他对象到第一个对象
 * @param {any[]} args
 * @return {any} 第一个对象
 */
export declare function deepMerge(...args: any[]): any;
export interface DebounceOptions {
    leading?: boolean;
    trailing?: boolean;
    maxWait?: number;
}
export declare function debounce(func: (...args: any[]) => any, wait: number, options?: DebounceOptions): {
    (...args: any[]): any;
    cancel: () => void;
    flush: () => any;
    pending: () => boolean;
};
export declare function throttle(func: (...args: any[]) => any, wait: number, options?: DebounceOptions): {
    (...args: any[]): any;
    cancel: () => void;
    flush: () => any;
    pending: () => boolean;
};
/**
 * @description: 获取页面范围
 * @param {number} current 当前页码
 * @param {number} pageCount 总页数
 * @param {number} pageItemCount 要展示的页数
 * @return {[number, number]}
 */
export declare function getPageRange(current: number, pageCount: number, pageItemCount: number): number[];
export declare function treeToMap(tree: object[], keyName: string, childrenName: string, parentName: string): {
    [key: string]: object;
    [key: number]: object;
    [key: symbol]: object;
};
/**
 * 如果 subProps 指定属性为 null 或 undefined， 则从 parentProps 中提取
 */
export declare function pickNonNullish<T extends string>(parentProps: Record<T, any>, subProps: Record<string, any>): Record<T, any>;
export declare function pickContextNullish<T extends string>(props: Record<T, any>, contextProps: Record<string, any>): Record<T, any>;
/**
 * @description 打乱数组
 * @param arr 要打乱的数组
 * @param inPlace 是否改变原数组
 */
export declare function shuffle(arr: any[], inPlace?: boolean): any[];
interface Rect {
    x: number;
    y: number;
    width: number;
    height: number;
}
/**
 * @description: 根据原始坐标尺寸和缩放后的坐标尺寸算出转换的原点
 * @param {Rect} rect
 * @param {Rect} scaleRect
 * @return {[number, number]}
 */
export declare function getTransformOrigin(rect: Rect, scaleRect: Rect): number[];
/**
 * @description: 将一个可选单位的字符串或数值拆分为数值和单位组成的数组
 * @param {number | string} target
 * @return {[number, string]}
 */
export declare function splitUnit(target: number | string): [number, string];
/**
 * @description: 确保接收 children 为 ReactElement 数组
 * @param {number | string} target
 * @return {[number, string]}
 */
export declare function toElementArray(children: ReactElement | ReactElement[]): ReactElement<any, string | import("react").JSXElementConstructor<any>>[];
/**
 * @description: 自定义 transitionEnd 事件
 * @param {function} callback 结束后的回调
 * @param {number} duration 结束的时间
 * @return {{}}
 */
export declare function transitionEnd(callback: (...args: any[]) => any, duration?: number): {
    clear: () => void;
    finish: () => void;
};
/**
 * @description: 合并多个 props，非指定（第一个数组参数）的函数属性会合并调用，
 *  className 和 style 也会合并，其他则直接替换
 * @param {array} args
 * @return {*}
 */
export declare function mergeProps(...args: any[]): any;
export declare function chainSelect(object: any, chain?: string): any;
export declare function getObjectValueInDepth(object: any, keys: (string | number)[]): any;
export declare function arrayMove(array: any[], fromIndex: number, toIndex: number): any[];
export declare function arrayRemoveAtIndexes(arr: any[], indexes: number[]): any[];
export declare function arrayEqual(arr1: any[], arr2: any[]): boolean;
export declare function nestedToMulti(nested: any[], values: (number | string)[], fieldKeys: {
    value: string;
    children: string;
}): any[];
export declare function filterNullish(object: Record<PropertyKey, any>): {};
export declare function addPxInWeb(value?: number): string | number;
export {};