How to access array elements in a Django template?

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慢半拍i
慢半拍i 2020-11-28 18:27

I am getting an array arr passed to my Django template. I want to access individual elements of the array in the array (e.g. arr[0], arr[1]

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  • 2020-11-28 18:43

    Remember that the dot notation in a Django template is used for four different notations in Python. In a template, foo.bar can mean any of:

    foo[bar]       # dictionary lookup
    foo.bar        # attribute lookup
    foo.bar()      # method call
    foo[bar]       # list-index lookup
    

    It tries them in this order until it finds a match. So foo.3 will get you your list index because your object isn't a dict with 3 as a key, doesn't have an attribute named 3, and doesn't have a method named 3.

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  • 2020-11-28 18:45

    when you render a request tou coctext some information: for exampel:

    return render(request, 'path to template',{'username' :username , 'email'.email})
    

    you can acces to it on template like this : for variabels :

    {% if username %}{{ username }}{% endif %}
    

    for array :

    {% if username %}{{ username.1 }}{% endif %}
    {% if username %}{{ username.2 }}{% endif %}
    

    you can also name array objects in views.py and ten use it like:

    {% if username %}{{ username.first }}{% endif %}
    

    if there is other problem i wish to help you

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  • 2020-11-28 18:54

    You can access sequence elements with arr.0 arr.1 and so on. See The Django template system chapter of the django book for more information.

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  • 2020-11-28 18:58
    arr.0
    arr.1
    

    etc.

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