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♻️ refactor: Extract _extend from from.
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,21 @@ | ||
import assert from 'assert'; | ||
import Node from './Node.js'; | ||
import _push from './_push.js'; | ||
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/** | ||
* Extend a list with an iterable. | ||
* | ||
* @param {Node} z The last node of the list to extend. | ||
* @param {Iterable} iterable The input iterable. | ||
* @return {Node} Last node of the extended list. | ||
*/ | ||
export default function _extend(z, iterable) { | ||
assert(z instanceof Node); | ||
let y = z; | ||
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for (const value of iterable) { | ||
y = _push(y, value); | ||
} | ||
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return y; | ||
} |
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