---
name: "up.util.microtask"
area: "API"
kind: "JavaScript function"
parent: "up.util module"
visibility: "deprecated"
url: "https://unpoly.com/api/up.util.microtask"
---
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# up.util.microtask(task)

**This feature has been deprecated**. Use [`queueMicrotask()`](https://developer.mozilla.org/en-US/docs/Web/API/queueMicrotask) instead.

Load [`unpoly-migrate.js`](https://unpoly.com/changes/upgrading.md) to polyfill deprecated features.

Pushes the given function to the [JavaScript microtask queue](https://jakearchibald.com/2015/tasks-microtasks-queues-and-schedules/).

---

## Parameters {#parameters}

### task {#task}

(required)

Type: Function()

---

## Return value {#return-value}

A promise that is resolved with the return value of `task`.

If `task` throws an error, the promise is rejected with that error.

Type: [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_promises)