interface IndexOf {
    (target: string, list: string): number;
    <T>(target: T, list: ArrayLike<T>): number;
    (targer: string): (list: string) => number;
    <T>(target: T): (list: ArrayLike<T>) => number;
}
/**
 * Returns the position of the first occurrence of an item in an array, or -1
 * if the item is not included in the array.
 *
 * @param {*} target The item to find.
 * @param {Array} xs The array to search in.
 * @return {Number} the index of the target, or -1 if the target is not found.
 * @example
 *
 *      indexOf(3, [1,2,3,4]); //=> 2
 *      indexOf(10, [1,2,3,4]); //=> -1
 */
declare const _default: IndexOf;
export default _default;