Environment

python 3.6.5
django 2.1

===============

Enumerating in a Django Template

I recently had a problem where I had to enumerate through a list passed from the view to the template. You can use these methods below.

variable	definition
`forloop.counter`	enumerating, index starting from 1
`forloop.counter0`	enumerating, index starting from 0
`forloop.revcounter`	enumerating, index starting from the tail
`forloop.revcounter0`	enumerating, index starting from 0
`forloop.first`	true when index is at 0
`forloop.last`	true when index is at tail
`forloop.parentloop`	enumerates through the parent loop

An example of the forloop.counter will be:

{% for person in listlike_var %}
    {{ forloop.counter }} : {{ person.name }}
{% endfor %}

Output:

1: sally
2: bob
3: john

For forloop.counter0 it will be:

{% for person in listlike_var %}
    {{ forloop.counter0 }} : {{ person.name }}
{% endfor %}

0: sally
1: bob
2: john

As for the length of a list, listlike_var|length can be used.

{{ listlike_var|length }}