'use strict'; var globalThis = require('../internals/global-this'); var fails = require('../internals/fails'); var V8 = require('../internals/environment-v8-version'); var ENVIRONMENT = require('../internals/environment'); var structuredClone = globalThis.structuredClone; module.exports = !!structuredClone && !fails(function () { // prevent V8 ArrayBufferDetaching protector cell invalidation and performance degradation // https://github.com/zloirock/core-js/issues/679 if ((ENVIRONMENT === 'DENO' && V8 > 92) || (ENVIRONMENT === 'NODE' && V8 > 94) || (ENVIRONMENT === 'BROWSER' && V8 > 97)) return false; var buffer = new ArrayBuffer(8); var clone = structuredClone(buffer, { transfer: [buffer] }); return buffer.byteLength !== 0 || clone.byteLength !== 8; });