/**
 * @author Sean sean.snow@live.com
 * @date 2015/12/27
 */
export declare class Arrays {
    static copyOf(original: Array<any>, newLength: number): Array<any>;
    static arraycopy(src: Array<any>, srcPos: number, dest: Array<any>, destPos: number, length: number): void;
    /**
     * 笛卡尔积
     */
    static cartesian(arr: Array<any>): Array<any>;
}