---
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/a99879ec8d861be3a0ad876930e4eb90d0b8cbc6/src/build.ts#L41)

Build with tsdown.

## Parameters

### inlineConfig?

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

## Returns

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