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- /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- /**
- * @module utils/nth
- */
- /**
- * Returns `nth` (starts from `0` of course) item of the given `iterable`.
- *
- * If the iterable is a generator, then it consumes **all its items**.
- * If it's a normal iterator, then it consumes **all items up to the given index**.
- * Refer to the [Iterators and Generators](https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Iterators_and_Generators)
- * guide to learn differences between these interfaces.
- *
- * @param {Number} index
- * @param {Iterable.<*>} iterable
- * @returns {*}
- */
- export default function nth( index, iterable ) {
- for ( const item of iterable ) {
- if ( index === 0 ) {
- return item;
- }
- index -= 1;
- }
- return null;
- }
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