How can I check the current number of active tasks?

Question

RepoPilot · Accepted Answer

You can check the current number of active tasks using the **`activeCount`** property on your limit function.

Here's how:

```js
import pLimit from 'p-limit';

const limit = pLimit(5);

// ... queue some tasks ...

console.log(limit.activeCount); // Returns the number of promises currently running
```

According to the type definitions in [index.d.ts:L2-L4], `activeCount` is a read-only property that returns "the number of promises that are currently running."

A practical example from [recipes.md:L191-L214] shows how to use this for progress reporting:

```js
const progressInterval = setInterval(() => {
	console.log(`Running: ${limit.activeCount}, pending: ${limit.pendingCount}`);
}, 250);
```

This allows you to monitor both active tasks (those running right now) and pending tasks (those waiting to run).

FOLLOW_UPS:
- How do I track pending tasks waiting to run?
- Can I adjust concurrency limit dynamically at runtime?
- How do I know when all tasks complete?