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Question

Here is the use case Name1 is the section names value1 is the text value,when next section name starts with item2 before empty section names consider as section names with the text followed by as mentioned in the output 
 a!localVariables(
 local!testdata: {
 { "Name1": "Item1", "Value1": "Data for Item 1" },
 { "Name1": null, "Value1": "Different data for Item 2" },
 { "Name1": null, "Value1": "Some other kind of data" },
 { "Name1": "Item2", "Value1": "Another example of data" },
 { "Name1": null, "Value1": "Random data like GBP 50,000" },
 { "Name1": "Item3", "Value1": "Data related to an event or value" },
 { "Name1": null, "Value1": "Adjustable by percentage of revenue" },
 { "Name1": null, "Value1": "Premium payable quarterly" }
 },
 
 local!testdata expected output is [ { "section": "Item1", "fullText": "Data for Item 1 Different data for Item 2 Some other kind of data" }, { "section": "Item2", "fullText": "Another example of data Random data like GBP 50,000" }, { "section": "Item3", "fullText": "Data related to an event or value Adjustable by percentage of revenue Premium payable quarterly" } ] @ Stefan Helzle Mike Schmitt Mathieu Drouin Konduru Chaitanya Varun Teja Gurrapu Venkat Avuluri

Yashwanth Akula · Accepted Answer

Hi harshithar688624 a!localVariables(
 local!testdata: {
 {
 "Name1": "Item1",
 "Value1": "Data for Item 1"
 },
 {
 "Name1": null,
 "Value1": "Different data for Item 2"
 },
 {
 "Name1": null,
 "Value1": "Some other kind of data"
 },
 {
 "Name1": "Item2",
 "Value1": "Another example of data"
 },
 {
 "Name1": null,
 "Value1": "Random data like GBP 50,000"
 },
 {
 "Name1": null,
 "Value1": "Hii data like GBP 50,000"
 },
 {
 "Name1": "Item3",
 "Value1": "Data related to an event or value"
 },
 {
 "Name1": null,
 "Value1": "Adjustable by percentage of revenue"
 },
 {
 "Name1": null,
 "Value1": "Premium payable quarterly"
 },
 {
 "Name1": null,
 "Value1": "party payable quarterly"
 },
 {
 "Name1": "Item4",
 "Value1": "Item four data"
 }
 },
 local!uniqueName: reject(
 fn!isnull,
 union(
 local!testdata.Name1,
 local!testdata.Name1
 )
 ),
 local!indexes: a!forEach(
 items: enumerate(length(local!uniqueName)) + 1,
 expression: a!localVariables(
 local!first: index(local!uniqueName, fv!item, {}),
 local!second: index(local!uniqueName, fv!item + 1, null),
 if(
 a!isNullOrEmpty(local!second),
 {},
 a!map(
 startIndex: index(
 wherecontains(
 tostring(local!first),
 touniformstring(local!testdata.Name1)
 ),
 1,
 ""
 ),
 endIndexPlusOne: index(
 wherecontains(
 tostring(local!second),
 touniformstring(local!testdata.Name1)
 ),
 1,
 ""
 )
 )
 )
 )
 ),
 local!finalNameStartIndex: local!indexes[length(local!indexes)].endIndexPlusOne,
 a!flatten(
 {
 a!forEach(
 items: local!indexes,
 expression: a!map(
 section: index(
 local!testdata.Name1,
 fv!item.startIndex,
 ""
 ),
 fullText: joinarray(
 index(
 local!testdata.Value1,
 enumerate(
 tointeger(fv!item.endIndexPlusOne) - fv!item.startIndex
 ) + fv!item.startIndex,
 ""
 ),
 " "
 )
 )
 ),
 a!map(
 section: index(
 local!testdata.Name1,
 local!finalNameStartIndex,
 ""
 ),
 fullText: joinarray(
 index(
 local!testdata.Value1,
 {
 enumerate(
 length(local!testdata) - local!finalNameStartIndex + 1
 ) + local!finalNameStartIndex
 },
 ""
 ),
 " "
 )
 )
 }
 )
) 
 Hope it helps. please test it with some scenarios; let me know is it working fine

Stefan Helzle · Answer

I think this can be solved using the reduce function. In a blog post, I describe how to implement such algorithms. Specifically how the create stable shared values across iterations. 
 appian.rocks/.../

Stefan Helzle · Answer

OK, then here is my solution. There are very simple alternatives to foreach(), 
 This helper expression either updates the last item in the list and concatenates the text, or adds a new section item. The created value is then passed to the next iteration by the reduce() function.

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