> ## Documentation Index
> Fetch the complete documentation index at: https://acme-c84a37e5.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# all

> Executes multiple tasks with concurrency and execution modes

## Signature

`all<T>(tasks, options?): Promise<TryoResult<T, E>[]>`

## Options

* Inherits all `run` options
* `concurrency`: maximum simultaneous tasks (default: unbounded)

## Example

```typescript theme={null}
import { all, tryo } from 'tryo'

const tasks = [
  () => fetch('/a').then(r => r.text()),
  () => fetch('/b').then(r => r.text()),
]

const results = await all<string>(tasks, {
  concurrency: 2,
})

// Or using an instance
const ex = tryo()
const resultsInstance = await ex.all(tasks)
const { ok, failure } = ex.partitionAll(resultsInstance)
```

## Result per Item

Each item in the returned array is a `TryoResult`:

* **Success**: `{ ok: true, data: T, error: null, metrics: TryoMetrics }`
* **Failure**: `{ ok: false, data: null, error: TypedError, metrics: TryoMetrics }`

The array always has the same length as the input tasks array. If a task wasn't started due to an early abort, it will be returned as an `ABORTED` error result.