---
sidebar_label: launch
---

# launch() function

#### Signature:

```typescript
launch: (
  options?:
    | import('puppeteer-core/internal/puppeteer-core.js').PuppeteerLaunchOptions
    | undefined
) => Promise<import('puppeteer-core/internal/puppeteer-core.js').Browser>;
```

## Parameters

<table><thead><tr><th>

Parameter

</th><th>

Type

</th><th>

Description

</th></tr></thead>
<tbody><tr><td>

options

</td><td>

import("puppeteer-core/internal/puppeteer-core.js").[PuppeteerLaunchOptions](./puppeteer.puppeteerlaunchoptions.md) \| undefined

</td><td>

_(Optional)_

</td></tr>
</tbody></table>
**Returns:**

Promise&lt;import("puppeteer-core/internal/puppeteer-core.js").[Browser](./puppeteer.browser.md)&gt;