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- /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- /**
- * @module utils/count
- */
- /**
- * Returns the number of items return by the iterator.
- *
- * count( [ 1, 2, 3, 4, 5 ] ); // 5;
- *
- * @param {Iterable.<*>} iterator Any iterator.
- * @returns {Number} Number of items returned by that iterator.
- */
- export default function count( iterator ) {
- let count = 0;
- for ( const _ of iterator ) { // eslint-disable-line no-unused-vars
- count++;
- }
- return count;
- }
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