Get index # of array in twig

Question

Trying to output the index # of an array in twig, having trouble finding it in the docs. Anyone know how to get it?

array(2) {
  [0]=>
  array(2) {
    ["testimonial"]=>
    string(18) "Derby Heist Test 1"
    ["author"]=>
    string(6) "test 1"
  }
  [1]=>
  array(2) {
    ["testimonial"]=>
    string(18) "Derby Heist Test 2"
    ["author"]=>
    string(6) "test 2"
  }
}

so I'd like to output the index numbers 0 and 1 in a for loop. Please help.

Answer 1

You can use The loop variable as example:

{% for user in users %}
    {{ loop.index }} - {{ user.username }}
{% endfor %}

loop.index The current iteration of the loop. (1 indexed)

loop.index0 The current iteration of the loop. (0 indexed)

Hope this help