---
url: /reference/api/Function.build.md
---
# Function: build()

```ts
function build(inlineConfig?): Promise<TsdownHandle>
```

Defined in: [src/build.ts:41](https://github.com/rolldown/tsdown/blob/089824a156827c3c26730a71a4212c6f946ed4b5/src/build.ts#L41)

Build with tsdown.

## Parameters

### inlineConfig?

[`InlineConfig`](Interface.InlineConfig.md) = `{}`

## Returns

`Promise`<[`TsdownHandle`](Interface.TsdownHandle.md)>