type Note = string;
/**
 * Create a numeric range
 *
 * @param {Number} from
 * @param {Number} to
 * @return {Array}
 *
 * @example
 * Array.range(-2, 2) // => [-2, -1, 0, 1, 2]
 * Array.range(2, -2) // => [2, 1, 0, -1, -2]
 */
export declare function range(from: number, to: number): number[];
/**
 *
 * Rotates a list a number of times. It"s completly agnostic about the
 * contents of the list.
 *
 * @param {Integer} times - the number of rotations
 * @param {Array} array
 * @return {Array} the rotated array
 * @example
 * Array.rotate(1, [1, 2, 3]) // => [2, 3, 1]
 */
export declare function rotate(times: number, arr: any[]): any[];
/**
 * Return a copy of the array with the null values removed
 * @function
 * @param {Array} array
 * @return {Array}
 *
 * @example
 * Array.compact(["a", "b", null, "c"]) // => ["a", "b", "c"]
 */
export declare const compact: (arr: any[]) => any[];
/**
 * Sort an array of notes in ascending order
 *
 * @param {String|Array} notes
 * @return {Array} sorted array of notes
 */
export declare function sort(src: string[]): Note[];
/**
 * Get sorted notes with duplicates removed
 *
 * @function
 * @param {Array} notes
 */
export declare function unique(arr: any[]): any[];
/**
 * Randomizes the order of the specified array in-place, using the Fisher–Yates shuffle.
 *
 * @private
 * @function
 * @param {Array|String} arr - the array
 * @return {Array} the shuffled array
 *
 * @example
 * Array.shuffle(["C", "D", "E", "F"])
 */
export declare var shuffle: (arr: any[], rnd?: () => number) => any[];
/**
 * Get all permutations of an array
 * http://stackoverflow.com/questions/9960908/permutations-in-javascript
 *
 * @param {Array} array - the array
 * @return {Array<Array>} an array with all the permutations
 */
export declare const permutations: (arr: any[]) => any[][];