Optional Tags in Loop

[ChickenBone]

Hi there!

I am running into an issue I hope others have encountered. I am trying to generate a X12 4010, 214 document and am running into a roadblock with the N1Loop.

In this loop there is

N1*
N2
N3
N4

The issue comes that only N1 is required and in most cases the N1Loop will have all of them N1-4 for most of them but then one of the segments in the loop with only have N1, is there any way to achieve this? I cannot seem to figure out how to have a element not be there if the provided data is not there. The closest I've gotten ( below ) just provides a empty N2-4 with the contents like N4***~

where: 'N3' seems to "sortof" work

    {
            tag: 'N3',
            elements: [
                "{{ input.N1Loop | map: 'N3.AddressInformation_01' | in_loop | where: 'N3' }}",
                "{{ input.N1Loop | map: 'N3.AddressInformation_02' | in_loop | where: 'N3' }}",

            ],
        },

The Whole Tamale

   {
            tag: 'N1',
            elements: [
                "{{ input.N1Loop | map: 'N1.EntityIdentifierCode_01' | in_loop }}",
                "{{ input.N1Loop | map: 'N1.Name_02' | in_loop }}",
            ],
            loopStart: true,
            loopLength: "{{ input.N1Loop | size }}",
        },
        {
            tag: 'N3',
            elements: [
                "{{ input.N1Loop | map: 'N3.AddressInformation_01' | in_loop | where: 'N3' }}",
                "{{ input.N1Loop | map: 'N3.AddressInformation_02' | in_loop | where: 'N3' }}",

            ],
        },
        {
            tag: 'N4',
            elements: [
                "{{ input.N1Loop | map: 'N4.CityName_01' | in_loop }}",
                "{{ input.N1Loop | map: 'N4.StateorProvinceCode_02' | in_loop }}",
                "{{ input.N1Loop | map: 'N4.PostalCode_03' | in_loop }}",
            ],
            loopEnd: true,
        },

Thank you in advanced, Also going to dig into the js-edi package and see if there is something I can maybe use? Thank you so much for your work on these packages, this is a relatively small issue in the scope of EDI.