/**
 * Find the insertion position (index) of an item in an array with items sorted
 * in ascending order; so that `splice(sortedIndex, 0, item)` would result in
 * maintaining the array's sort-ness. The array can contain duplicates.
 * If the item already exists in the array the index would be of the *first*
 * occurrence of the item.
 *
 * Runs in O(logN) time.
 *
 * @param data - The (ascending) sorted array.
 * @param item - The item to insert.
 * @returns Insertion index (In the range 0..array.length).
 * @signature
 *    R.sortedIndex(data, item)
 * @example
 *    R.sortedIndex(['a','a','b','c','c'], 'c') // => 3
 * @dataFirst
 * @category Array
 * @see sortedIndexBy, sortedIndexWith, sortedLastIndex, sortedLastIndexBy
 */
declare function sortedIndex<T>(data: ReadonlyArray<T>, item: T): number;
/**
 * Find the insertion position (index) of an item in an array with items sorted
 * in ascending order; so that `splice(sortedIndex, 0, item)` would result in
 * maintaining the array's sort-ness. The array can contain duplicates.
 * If the item already exists in the array the index would be of the *first*
 * occurrence of the item.
 *
 * Runs in O(logN) time.
 *
 * @param item - The item to insert.
 * @returns Insertion index (In the range 0..array.length).
 * @signature
 *    R.sortedIndex(item)(data)
 * @example
 *    R.pipe(['a','a','b','c','c'], R.sortedIndex('c')) // => 3
 * @dataLast
 * @category Array
 * @see sortedIndexBy, sortedIndexWith, sortedLastIndex, sortedLastIndexBy
 */
declare function sortedIndex<T>(item: T): (data: ReadonlyArray<T>) => number;

export { sortedIndex };