export declare function debounce<T extends (...args: Array<any>) => any>(fn: T, wait?: number, runFirst?: boolean): (...args: Array<any>) => void;
export declare function debounceRAF<T extends (...args: Array<any>) => any>(fn: T): {
    (...args: Array<any>): void;
    cancel(): void;
};
export declare function throttleRAF<T extends (...args: Array<any>) => any>(fn: T): {
    (...args: Array<any>): void;
    cancel(): void;
};
/**
 * 颜色池
 */
export declare class ColorPool {
    pool: Array<string>;
    tmpPool: Array<string>;
    constructor(pool: Array<string>);
    /**
     * 返回指定位置颜色，或者从颜色池随机返回一个颜色
     * @param index
     * @returns
     */
    pick(index?: number): string;
}
/**
 * 生成随机字符串
 * @param prefix 前缀
 * @param length 字符串长度
 */
export declare function uniqueId(prefix?: string, length?: number): string;
/**
 * 将数组拆分成多个指定长度的区块
 * @param arr 被拆分数组
 * @param size 区块长度
 */
export declare function chunk(arr?: any[], size?: number): any[][];
/**
 * 异步some
 * @param array 遍历数组
 * @param judgeFn 判断函数
 */
export declare function asyncSome<T>(array: Array<T>, judgeFn: (arrayItem: T) => Promise<boolean | undefined>): Promise<boolean>;
/**
 * 根据path从对象中获取值
 */
export declare function getValueByPath(obj: object, path: string): any;
/**
 * 根据path设置对象中的值
 */
export declare function setValueByPath(obj: {
    [k: string]: any;
}, path: string, value: any): void;
/**
 * 将数组中的某一项移到第一项
 * @param arr 被移动的数组
 * @param item 需要移动的项
 * @returns Array
 */
export declare function moveToFirst<T>(arr: T[], item: T): T[];
/**
 * 转换为字符串，对于undefined、null、NaN转换为''
 * @param val
 * @returns string
 */
export declare function formateToString(val: unknown): string;
/**
 * 使用图片url请求加载图片
 * @param src s
 * @returns
 */
export declare function requestImage(src: string): Promise<unknown>;
/**
 * 从对象中挑选属性
 */
export declare function pick(source: Object, keys: string[]): Record<string, any>;
/**
 * 分批执行大量任务
 * tasks: 任务列表 Array<() => void>
 * sheduler：调度器函数，用于分批执行任务
 *    runChunk：分批执行函数 (toContinue:(currentTaskIndex: number)=>boolean)=>void
 *        toContinue:(currentTaskIndex: number)=>boolean 是否继续执行的条件
 */
export declare function performTask(tasks: Array<() => void>, sheduler: (runChunk: (toContinue: (currentTaskIndex: number) => boolean) => void) => void): void;
/**
 * 分时执行大量任务,使用requestIdleCallback
 * tasks: 任务列表 Array<() => void>
 */
export declare function idlePerformTask(tasks: Array<() => void>): void;