Concatenate lists in JINJA2

Concatenate lists in JINJA2

In Jinja2, you can concatenate lists by using the + operator within the template. Here's how you can concatenate two or more lists in a Jinja2 template:

Assuming you have two lists in your template context, list1 and list2, you can concatenate them like this:

{% set concatenated_list = list1 + list2 %}

Here's an example of how you can use this in a template:

<ul> {% set list1 = [1, 2, 3] %} {% set list2 = [4, 5, 6] %} {% set concatenated_list = list1 + list2 %} {% for item in concatenated_list %} <li>{{ item }}</li> {% endfor %} </ul>

In this example, list1 and list2 are concatenated into concatenated_list, which is then iterated over to generate list items in the HTML.

You can concatenate more than two lists using the same + operator. Just make sure that all the lists you want to concatenate are present in your template context.

Examples

  1. "Jinja2 concatenate lists"

    Description: Users may seek a way to concatenate or merge multiple lists within Jinja2 templates to streamline their HTML or text generation process.

    {% set concatenated_list = list1 + list2 %}

  2. "How to join lists in Jinja2"

    Description: This query targets joining or combining multiple lists together within Jinja2 templates to create a unified output.

    {% set joined_list = list1.extend(list2) %}

  3. "Concatenate multiple lists in Jinja2 template"

    Description: Users may look for a method to concatenate multiple lists within a Jinja2 template to simplify data manipulation and presentation.

    {% set concatenated_list = list1.extend(list2) %}

  4. "Join lists in Jinja2 template"

    Description: This query focuses on joining or merging multiple lists together within a Jinja2 template for generating dynamic content.

    {% set joined_list = list1 + list2 %}

  5. "Combine lists in Jinja2"

    Description: Users may want to combine or concatenate lists within Jinja2 templates to present data in a unified manner.

    {% set combined_list = list1 + list2 %}

  6. "Jinja2 merge lists"

    Description: This query is about merging or concatenating multiple lists within Jinja2 templates to simplify template logic.

    {% set merged_list = list1 + list2 %}

  7. "Concatenate arrays in Jinja2"

    Description: Users might use the term "arrays" interchangeably with lists in the context of Jinja2 templates and seek a way to concatenate them.

    {% set concatenated_array = list1 + list2 %}

  8. "How to append lists in Jinja2 template"

    Description: Users may need to append or concatenate lists within Jinja2 templates to dynamically build content.

    {% set appended_list = list1.extend(list2) %}

  9. "Combine arrays in Jinja2 template"

    Description: Users may look for a method to combine or merge arrays (lists) within Jinja2 templates to simplify template rendering.

    {% set combined_array = list1 + list2 %}

  10. "Concatenate Jinja2 lists without duplicates"

    Description: This query may arise when users want to concatenate lists in Jinja2 while ensuring that duplicate elements are removed.

    {% set concatenated_list = list(set(list1) | set(list2)) %}

More Tags

google-cloud-messaging swig angular-builder imageurl tvos jquery-ui-datepicker screencast fieldofview iis-express android-recyclerview

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