> For the complete documentation index, see [llms.txt](https://mavolin.gitbook.io/corgi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mavolin.gitbook.io/corgi/learning-corgi/for.md).

# For

Just like with `if` and `switch`, corgi also provides a built-in `for`-loop.

You can write anything behind the `for` that you could also write behind a Go `for`. Just don't add a `{`.

{% hint style="info" %}
Unlike Go templates, when writing a for-range loop the index goes first, just like in regular Go.
{% endhint %}

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

```pug
for _, elem := range []int{1, 2, 3, 4}
  p #{elem}


```

{% endtab %}

{% tab title="Go" %}

```go
for _, elem := range []int{1, 2, 3, 4} {
  // p #{elem}
}

```

{% endtab %}

{% tab title="HTML" %}

```markup
<p>1</p>
<p>2</p>
<p>3</p>
<p>4</p>
```

{% endtab %}
{% endtabs %}

## Ordered Map Iteration

When iterating over maps the order is non-deterministic, meaning the elements will appear in "random" order.

If you always want to print elements in the same (sorted) order, you can use corgi's `ordered range` keyword, which allows you to range over maps with comparable keys (as defined by the `comparable` constraint) in ascending order.

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

```pug
- m := map[string]string{"b": "bar", "a": "foo"}
for k, v := ordered range m
  p #{k}: #{v}

```

{% endtab %}

{% tab title="HTML" %}

```markup


  <p>a: foo</p>
  <p>b: bar</p>
```

{% endtab %}
{% endtabs %}


---

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