switch statement in twig drupal 8

Question

Does twig in drupal 8 have a switch case statement?

Something like:

{% set size = rows | length %}
{% switch rows %}
    {% case "1" %}
        {{ do something }}
    {% case "2" %}
        {{ do example }}
    {% case "3" %}
        {{ do that }}
    {% default %}
        <p>A font walks into a bar.</p>
        <p>The bartender says, “Hey, we don’t serve your type in here!”</p>
{% endswitch %}

I tried this:

 {% if size ==1 %}
values 1
{% elseif size ==2 %}
values 2
{% else %}
value not found
{% endif %}

But it seems its stucked on the first statement never goes to the second section/statement even when the value is 2

Answer 1

I think there doesn't exist a Switch function in Symfony/Twig. You have to fall back on a standard

{% if condition %}
...
{% elseif condition2 %}
...
{% else %}
...
{% endif %}

Hope I could help..

Answer 2

I was also looking to do a "switch statement" for my view template for Drupal 8, but I couldn't get it to work. I had the following:

{% set rowsLength = rows|length %}
{% switch rowsLength %}
    {% case 1 %}
        ...
    {% case 2 %}
        ...
    {% case 0 %}
        ...
{% endswitch %}

But when uploaded it just gave didn't render and put at that message of "something is wrong". So I ended up using the following "if" statement:

{% set rowsLength = rows|length %}
{% if rowsLength > 0 and rowsLength < 4  %}
    {% set nav_size = "small-carousel" %}
{% elseif rowsLength > 4 and rowsLength < 6 %}
    {% set nav_size = "medium-carousel" %}
{% else %}
    {% set nav_size = "" %}
{% endif %}

Hope it helps.