> For the complete documentation index, see [llms.txt](https://danfo.jsdata.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://danfo.jsdata.org/api-reference/dataframe/dataframe.index.md).

# DataFrame.index

danfo.DataFrame.**index**

## **Examples**

Returns auto-generated index of a DataFrame

{% tabs %}
{% tab title="Node" %}

```javascript
const dfd = require("danfojs-node")

let data = {"A": [-20.1, 30, 47.3, -20],
            "B": [34, -4, 5, 6], 
            "C": [20, -20, 30, -40]}
let df = new dfd.DataFrame(data)

console.log(df.index);
```

{% endtab %}

{% tab title="Browser" %}

```
```

{% endtab %}
{% endtabs %}

{% tabs %}
{% tab title="Output" %}

```
[0, 1, 2, 3]
```

{% endtab %}
{% endtabs %}

{% tabs %}
{% tab title="Node" %}

```javascript
const dfd = require("danfojs-node")

let data = {"A": [-20.1, 30, 47.3, -20],
            "B": [34, -4, 5, 6], 
            "C": [20, -20, 30, -40]}
let df = new dfd.DataFrame(data, {index: ["r1", "r2", "r3", "r4"])

console.log(df.index);
```

{% endtab %}

{% tab title="Browser" %}

```
```

{% endtab %}
{% endtabs %}

{% tabs %}
{% tab title="Output" %}

```
[ 'r1', 'r2', 'r3', 'r4' ]
```

{% endtab %}
{% endtabs %}