if string contains substring twig

Question

I feel a bit dummy as I can't make it work..

I'm trying to check if a string contains substring in my twig.

{% set url = url('<current>') %}
{{ url }}

{% if 'my-delivery' in url %}
    //print something
{% endif %}

The url is printed outside the if statement but it doesn't enter the if statement and the url contains 'my-delivery'.

Any idea why it doesn't work?

Answer 1

The twig function url() returns a render array, when you render it with the twig filter |render you get a markup object and when you render it again you get a string, which you can check whether it contains a substring:

{% set url = url('<current>') %}
{% if 'test' in url|render|render %}
  <p>url contains "test"</p>
{% endif %}

Answer 2

url() returns an array, as 4x4 says. You can see this if you do a for loop on the variable.

path(), however, seems to return a string that you can do your operation on. But it won't include hostname.