> For the complete documentation index, see [llms.txt](https://docs.locoia.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.locoia.com/automation/flow-builder/jinja2-template-language/magic-code-samples.md).

# Magic Code Samples

Jinja code examples for tricky things.

### Email parsing

How to get [`first.last@email.com`](mailto:first.last@email.com) the **first** and **last** name in two variables in Jinja?

```django
{% set first, last = email.split("@")[0].split(".") %} 
{{ first }} {{ last }}
```

How to get the myname of [`myname@email.com`](mailto:myname@email.com) before the @ nicely, e.g. to use as a first name?

```
{% set first = email.split("@")[0] %}
{{ first }}
```

###

### Mapping to lists

If you have two **lists**, one of which can be **nested**, and you want to combine items of it, do as follows:

List 1 called `list_1`:

```json
{
    "items": [
        {
            "taxCode": "23456",
            "salesTaxRate": {
                "taxRate": "0.0001"
            }
        }
    ]
}
```

List 2 called `list_2`:

```json
{
    "id": "11",
    "custcol_tax_code": "23456",
    "amount": 1000.00,
    ...
}
```

In the [Dict Helper > Define variable](/connectors/helpers/dict-helper.md):

```django
...

  {% for line_item in list_1["items"] %}
    {% for item in list_2 %}
      {% if line_item.taxCode == item.custcol_tax_code  %}
      
          "line_item_id": "{{ item.item.id }}"
          "amount": "{{ item.amount }}"
          "tax_rate": "{{ line_item.salesTaxRate.taxRate }}"

      {% endif %}
    {% endfor %}
  {% endfor %}

...
```

{% hint style="danger" %}
Since **items** is reserved in Python, and we use Python in the backend, you need to call it like **`list_1["items"]`**`, rather than standard dot notation.` \
\
`list_1.items is NOT possible.`
{% endhint %}


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