Inverse of items() ?

[mauleb]

At the moment, if you want to convert an object into an array, its possible via items(), i.e.

var exampleObj = {
  a: 1,
  b: 2
}

var asArray = items(exampleObject)
/*
[
  {
    key: 'a'
    value: 1
  }
  {
    key: 'b'
    value: 2
  }
]
*/

however, is it possible to iterate through an array to construct an object? Something like

var modifiedObject = [for kvp in items(exampleObj): {
  '${kvp.key}': '${kvp.value} but modified'
}]

/*
desired:

{
  a: '1 but modified'
  b: '2 but modified'
}

actual:

[
  { 
    a: '1 but modified' 
  }
  {
    b: '2 but modified'
  }
]
*/

[brwilkinson]

I won't comment too much, other than to say, it's not natively supported.

I saw this idea posted not too long ago...

I am not aware of any open issues for it this, I am guessing we may have one.

• I'll revisit this thread in a few days for some follow up.

main.bicep

param input array = [
  {
    key: 'k1'
    value: {
      prop1: 'value1'
    }
  }
  {
    key: 'k2'
    value: {
      prop1: 'value2'
    }
  }
]

module loop './nested_loop.bicep' = [for (item, i) in input: {
  name: 'loop${i}'
  params: {
    input: item
    index: i
  }
}]

output finalDictionary object = reference(resourceId('Microsoft.Resources/deployments', 'loop${(length(input) - 1)}')).outputs.dictionary.value

nested_loop.bicep

param input object
param index int

var dictionaryItem = {
  '${input.key}': {
    value: input.value
  }
}

output dictionary object = ((index == 0) ? dictionaryItem : union(reference(resourceId('Microsoft.Resources/deployments', 'loop${(index - 1)}'), '2021-04-01').outputs.dictionary.value, dictionaryItem))

[brwilkinson]

@mauleb

here is another thing to try:

https://docs.microsoft.com/en-us/azure/azure-resource-manager/templates/template-functions-object#createobject

[brwilkinson]

Here is the open issue for this by the way.

#4152

I will mark this as answered and you can follow up over there.