How do I concatenate strings with HUBL?

[#1]

How can I concatenate strings with Hubl? The docs suggest there is a special operator for it (~), however I have tried to use it in many different ways and I can't preduce the behaviour I expect.

I need to loop through an list and build up a string with the contents of the list. I have tried this and after the loop the 'items' variable has no value...

{% set items = "" %}

{% for row in hubdb_table_rows(1034058, "orderBy=random()") %}
{{ items = items ~ ("Test"+loop.index0+", ") }}
{% endfor %}
<div>{{ items }}</div>

Has anyone managed to do this before?

[#2]

{% set items = [] %}
{% for x in array %}
       {% set _dummyvar = items.append(x) %}
{%endfor %}

{{items}}

This wont get you 100% of the way but will get you most of the way. Wasn't entirely sure I understood what you were intending to do.

[#3]

@BillOddie you'll want to use the tilde in the statement rather than the expression. For example:

{% set items = "string 1" ~ "string 2" %}

Hope that helps!

[#4]

Hello, 

Thank you both for your answers.

I ended up using join| filter to print the list as a string with a custom delimiter. 

Sorry if my question was confusing