Is there a way to inspect the pending queue size?

Question

RepoPilot · Accepted Answer

Yes, there is. You can inspect the pending queue size using the **`pendingCount`** property on the limit function.

According to the TypeScript definitions [index.d.ts:L6-L9], `pendingCount` is a read-only property that represents:

> The number of promises that are waiting to run (i.e. their internal `fn` was not called yet).

The README also documents this in [readme.md:L92-L95]:

> ### limit.pendingCount
> 
> The number of promises that are waiting to run (i.e. their internal `fn` was not called yet).

A practical example is shown in the recipes for progress reporting [recipes.md:L191-L214], where `pendingCount` is used alongside `activeCount` to display real-time progress:

```js
console.log(`Running: ${limit.activeCount}, pending: ${limit.pendingCount}`);
```

There's also a test demonstrating this in [test.js:L180-L219], where `pendingCount` is checked after queueing work and after clearing the queue.

FOLLOW_UPS:
- How do you clear the pending queue?
- What's the difference between activeCount and pendingCount?
- Can you change the concurrency limit dynamically?