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'use strict'; const common = require('../common'); const assert = require('assert'); const { MessageChannel } = require('worker_threads'); { const { port1, port2 } = new MessageChannel(); const arrayBuffer = new ArrayBuffer(40); const typedArray = new Uint32Array(arrayBuffer); typedArray[0] = 0x12345678; port1.postMessage(typedArray, [ arrayBuffer ]); port2.on('message', common.mustCall((received) => { assert.strictEqual(received[0], 0x12345678); port2.close(common.mustCall()); })); }