import { assert, assertThrows } from "../assert.js"; const ab = new ArrayBuffer(1); const u8 = new Uint8Array(ab); assert(!ab.detached); // Detach the ArrayBuffer. ab.transfer(); assert(ab.detached); u8[100] = 123; // Doesn't throw. assertThrows(TypeError, () => Object.defineProperty(u8, "100", { value: 123 }));