How do I remove the first item of an array in twig?

Question

I have a array called 'Posts' in twig.

Is there a way to easily remove the first item of this array?

So it's structure is just like this:

array('post 1','post 2','post 3')

And I was wondering if the first post can easily be removed with a function in twig to this:

array('post 2','post 3')

Answer 1

You're looking for the slice filter.

The slice filter extracts a slice of a sequence, a mapping, or a string:

{% for i in ['post 1', 'post 2', 'post 3'] | slice(1) %} 
    {{ i }}
{% endfor %}

output

post 2      
post 3 

The slice filter works as the array_slice PHP function for arrays and mb_substr for strings with a fallback to substr.