Can't get key/value from hash

[johnaweiss]

The doc states

"When iterating a hash, item[0] contains the key, and item[1] contains the value"
https://github.com/Shopify/liquid/wiki/Liquid-for-Designers

But i'm getting blanks.
I'm testing here:
https://pramodvalavala-msft.github.io/liquid-playground/

Template:

  {
  {%- for item in answers -%}
    {%- assign oSubAnswers = item.answer -%}
    {{oSubAnswers}}
    {%- for subAns in oSubAnswers -%}
      {{ subAns[0] }}: {{ subAns[1] }}
    {%- endfor -%}

  {%- endfor -%}
  }

Data:

{
    "answers": {
      "12": {
        "answer": {
          "field_1": "John",
          "field_3": "White",
          "field_5": 1111111,
          "field_4": "111-111-1111"
        }
      },
      "22": {
        "answer": {
          "field_2": "111 Ventura Blvd",
          "field_3": "111-111-1111",
          "field_8": "[email protected]",
          "field_7": "https://tort.xyz",
          "field_6": "10 am to 6 pm, M-F"
        }
     }
   }
}

Output:

  {
    [field_1, John][field_3, White][field_5, 1111111][field_4, 111-111-1111][itemName, answer]
      : 
      : 
      : 
      : 
      : 

    [field_2, 111 Ventura Blvd][field_3, 111-111-1111][field_8, [email protected]][field_7, https://tort.xyz][field_6, 10 am to 6 pm, M-F][itemName, answer]
      : 
      : 
      : 
      : 
      : 
      : 

  }

[ashmaroli]

Hello @johnaweiss.
Your template doesn't account for the shape of data correctly.
Let's say "data" holds the given data. Then your template (to render all info) would be:

{% for item in data.answers %}
Id: {{ item[0] }}
Answer Keys:
  {% assign oSubAnswers = item[1]["answer"] -%}
  {% for subAns in oSubAnswers -%}
    {{ subAns[0] }}: {{ subAns[1] }}
  {% endfor %}
{% endfor %}

Result:

Id: 12
Answer Keys:
  field_1: John
  field_3: White
  field_5: 1111111
  field_4: 111-111-1111


Id: 22
Answer Keys:
  field_2: 111 Ventura Blvd
  field_3: 111-111-1111
  field_8: [email protected]
  field_7: https://tort.xyz
  field_6: 10 am to 6 pm, M-F

[johnaweiss]

So, if this is subAns
name : value

Then name is subAns[0], and value is subAns[1] ?
So, : is treated as an array delimiter, rather than key : value pair?

Can an subAns be accessed as a key : value pair?
oSubAnswers['field_8']

[ashmaroli]

You're once again confusing between data structures. JS objects { key: value, name: 'John' } are Hash instances { "key" => "value", "name" => "John" } in Ruby.

When Ruby hashes are iterated through, the data structure is an array of key-value pairs:
[["key", "value"], ["name", "John"]].

So if you were to assess each pair, you see that pair[0] refers to the key, and pair[1] refers to the value.

[johnaweiss]

I think you're saying that Liquid structures are JS objects are equivalent to Ruby Hashes, correct?
Is it possible to use a text-key to retrieve a value from the object, without an explicit loop to test each one?
Or, can the object be converted into a format that can be accessed using text-keys?
oSubAnswers['field_8']

[ashmaroli]

Liquid structures are JS objects are equivalent to Ruby Hashes, correct?

Not at all. Regardless, let's drop that discussion.

use text-key to retrieve..

Yes, we can either use the square-brackets or dot-notation syntax. The reason I outlined my comments with iteration was because your opening post focused on iteration and that it's the best way to render api structures as a whole via Liquid.

Anyways coming back to your query, when given the following JSON:

"comment" : {
  "id": 123456,
  "author": {
    "username": "john_doe",
    "email_id": "[email protected]"
  },
  "body": "Hello World!"
}

Then, I could use Liquid to render comment-author details via either of the following:

Commented by: {{ comment.author.username }}

Commented by:
{{ comment['author']['username'] }}

[johnaweiss]

@ashmaroli i sent a message to the email in your code.