/*You have an array and you want to seperate by a batch of 3E.g Array: {"a", "b", "c", "d", "e", "f", "g", "h"}Expected output: { ["a", "b", "c"], [ "d", "e", "f"], ["g", "h"] }*/
a!localVariables( local!chunkSize: 3, local!startingList: { "a", "b", "c", "d", "e", "f", "g", "h" }, local!wholeListSize: length(local!startingList), local!numChunks: ceiling(local!wholeListSize / local!chunkSize), local!data: a!forEach( enumerate(local!numChunks), a!localVariables( local!currentStartIndex: fv!item * local!chunkSize + 1, /* note: this utilizes zero-index of fv!item */ local!currentIndices: enumerate(local!chunkSize) + local!currentStartIndex, /* this rule just unions the input array with itself and rejects null values */ reject( fn!isnull, index( local!startingList, local!currentIndices, null() ) ) ) ), local!data )
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Out of curiosity, do you have a question or are you posting this for other peoples' reference?
Am posting it as a reference