export = each;
/**
 * Iterate over an input collection, invoking an `iterator` function for each element in the
 * collection and passing to it three arguments: `(value, index, collection)`. The `iterator`
 * function can end iteration early by returning `false`.
 *
 * @name each
 * @api public
 * @param {Function(value, key, collection)} iterator The function to invoke per iteration.
 * @param {Array|Object|string} collection The collection to iterate over.
 * @return {undefined} Because `each` is run only for side effects, always returns `undefined`.
 * @example
 * var log = console.log.bind(console);
 *
 * each(log, ['a', 'b', 'c']);
 * //-> 'a', 0, ['a', 'b', 'c']
 * //-> 'b', 1, ['a', 'b', 'c']
 * //-> 'c', 2, ['a', 'b', 'c']
 * //=> undefined
 *
 * each(log, 'tim');
 * //-> 't', 2, 'tim'
 * //-> 'i', 1, 'tim'
 * //-> 'm', 0, 'tim'
 * //=> undefined
 *
 * // Note: Iteration order not guaranteed across environments
 * each(log, { name: 'tim', occupation: 'enchanter' });
 * //-> 'tim', 'name', { name: 'tim', occupation: 'enchanter' }
 * //-> 'enchanter', 'occupation', { name: 'tim', occupation: 'enchanter' }
 * //=> undefined
 */
declare function each(iterator: any, collection: any[] | any | string): undefined;