/**
 * 将数据扁平化
 * @param list
 */
export declare const flatten: (list: Array<any>) => Array<any>;
/**
 * Shuffles array in place. ES6 version
 * @param {Array} a items The array containing the items.
 */
export declare function shuffle(a: Array<any>): any[];
/**
 * Description 将 arguments 等类似于数组的对象转化为数组
 * @param listLike
 * @return {Array}
 */
export declare function toArray(listLike: any): any[];
export declare const toArrayAlias: typeof toArray;
/** 将数组转化为 Map */
export declare function groupByDistinctly(arr: any[], key: string | number, valueKey?: string | number): {};
/** 分组并且填充 */
export declare function chunkWithFill(array: any[], size: number, fillObj?: any): any[][];
/** 添加或删除 */
export declare function addOrRemove(arr: any[], obj: any): any[];
/** 插入到某个数组中 */
export declare const insertArray: (arr: any[], index: number, newItem: any) => any[];