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28 lines
642 B
JavaScript
28 lines
642 B
JavaScript
const messagesReceived = new Set();
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for (let i = 0; i < 4; i++) {
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const worker = new Worker(
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new URL("./workers/message_before_close.js", import.meta.url).href,
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{ type: "module", name: String(i) },
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);
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worker.addEventListener("message", () => {
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messagesReceived.add(i);
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if (messagesReceived.size == 4) {
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console.log("received all 4 responses from the workers");
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}
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});
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worker.postMessage({});
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}
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globalThis.addEventListener("unload", () => {
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if (messagesReceived.size !== 4) {
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console.log(
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"received only %d responses from the workers",
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messagesReceived.size,
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);
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}
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});
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export {};
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