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Is it Possible to count current indexing in a loop which starts from indexing 1 as well as 0?

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Twig offers special loop variables that makes it easy to know indexing of a loop. You can use loop.index to count your current indexing of the loop, which will starting at 1. If You want to start your indexing from 0 so simply add 0 after loop.index like loop.index0.

There are other loop variable as well.

Like:

  • loop.revindex
  • loop.revindex0
  • loop.first
  • loop.last
  • loop.length
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Aside from the documentation on Craft web site https://craftcms.com/docs/3.x/dev/twig-primer.html, Twig is documented in its own site: https://twig.symfony.com/doc/3.x/

ZealousWeb's answer is documented here: https://twig.symfony.com/doc/3.x/tags/for.html

Inside of a for loop block you can access some special variables:

  • loop.index The current iteration of the loop. (1 indexed)|
  • loop.index0 The current iteration of the loop. (0 indexed)
  • loop.revindex The number of iterations from the end of the loop (1 indexed)
  • loop.revindex0 The number of iterations from the end of the loop (0 indexed)
  • loop.first True if first iteration
  • loop.last True if last iteration
  • loop.length The number of items in the sequence
  • loop.parent The parent context
{% for user in users %}
   {{ loop.index }} - {{ user.username }}
{% endfor %}

The loop.length, loop.revindex, loop.revindex0, and loop.last variables are only available for PHP arrays, or objects that implement the Countable interface.

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