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let timeStampCodes;
let worker = new Worker("worker_grandchild.js");
function listenToParent(event) {
self.removeEventListener("message", listenToParent);
timeStampCodes = event.data;
let timeStamps = [];
for (let timeStampCode of timeStampCodes) {
timeStamps.push(eval(timeStampCode));
}
// Send the timeStamps to the parent.
postMessage(timeStamps);
// Tell the grandchild to start.
worker.postMessage(timeStampCodes);
}
// The worker grandchild will send results back.
function listenToChild(event) {
worker.removeEventListener("message", listenToChild);
// Pass the results to the parent.
postMessage(event.data);
worker.terminate();
}
worker.addEventListener("message", listenToChild);
self.addEventListener("message", listenToParent);