# Functions

Atfinity defines some useful, additional Jinja functions when working with ADX:

| Name                                                             | Description                                                                                                                                                                                        |
| ---------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `render_markdown`                                                | Renders a string to markdown. Note that only basic formatting, not tables, is supported.                                                                                                           |
| `json_loads`                                                     | Converts a given string representing JSON to a Python dictionary, so you can easily process the result with Jinja.                                                                                 |
| `json_dumps`                                                     | Converts a Python object to a JSON string.                                                                                                                                                         |
| `translate_string`                                               | See [Custom Translations](/document-xml-adx/jinja-templating/custom-translations.md).                                                                                                              |
| `format_date(date, date_format=None)`                            | Formats a date value. Optionally accepts a format string. Uses the document language. Also available as a [filter](/document-xml-adx/jinja-templating/jinja-filters.md).                           |
| `format_date_speaking(date)`                                     | Formats a date in a human-readable format (`D. MMMM YYYY`). Uses the document language. Also available as a [filter](/document-xml-adx/jinja-templating/jinja-filters.md).                         |
| `format_date_time(datetime, date_format=None, time_format=None)` | Formats a datetime value. Optionally accepts separate date and time format strings. Uses the document language. Also available as a [filter](/document-xml-adx/jinja-templating/jinja-filters.md). |
| `format_date_time_speaking(datetime)`                            | Formats a datetime in a human-readable format. Uses the document language. Also available as a [filter](/document-xml-adx/jinja-templating/jinja-filters.md).                                      |
| `is_known(value)`                                                | Returns `True` if the value is not `None`. Also available as a [filter](/document-xml-adx/jinja-templating/jinja-filters.md).                                                                      |
| `is_unknown(value)`                                              | Returns `True` if the value is `None`. Also available as a [filter](/document-xml-adx/jinja-templating/jinja-filters.md).                                                                          |


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