---
url: /reference/@cssdoc/providers/functions/completeCustomProperties.md
---
# Function: completeCustomProperties()

```ts
function completeCustomProperties(index): Completion[];
```

Defined in: [packages/providers/src/index.ts:162](https://github.com/thedannywahl/cssdoc/blob/main/packages/providers/src/index.ts#L162)

Completions for `var(--…)`: the declared custom properties.

## Parameters

### index

[`CssDocIndex`](../../index/classes/CssDocIndex.md)

## Returns

[`Completion`](../../cssdoc/interfaces/Completion.md)\[]