| // Copyright (C) 2024 Igalia, S.L. All rights reserved. | |
| // This code is governed by the BSD license found in the LICENSE file. | |
| /*--- | |
| esid: sec-module-namespace-exotic-objects-preventextensions | |
| desc: _ [[IsExtensible]] | |
| info: | | |
| [[IsExtensible]] ( ) | |
| 1. Return **false**. | |
| template: ignore | |
| ---*/ | |
| //- body | |
| Object.preventExtensions(ns); |