import predicateType from '../helpers/predicateType';
/**
 * Returns the index of the first element in the array that satisfies the provided predicate function.
 *
 * @since 1.0.0
 *
 * @param {Array} array - The array to search.
 * @param {Function} [predicate=identity] - The function invoked per iteration.
 * @param {number} [fromIndex=0] - The index to search from.
 * @returns {number} - Returns the index of the found element, else -1.
 *
 * @example
 *
 * const users = [
 *   { id: 1, name: 'John' },
 *   { id: 2, name: 'Jane' },
 *   { id: 3, name: 'Bob' }
 * ];
 *
 * findIndex(users, ({ id }) => id === 2);
 * // => 1
 *
 * findIndex(users, ({ name }) => name === 'Mary');
 * // => -1
 */
declare const findIndex: <T>(array: T, predicate?: predicateType<T>, fromIndex?: number) => number;
export default findIndex;