RosettaCodeData/Task/Nested-function/Jq/nested-function.jq

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def makeList(separator):
# input: {text: _, counter: _}
def makeItem(item):
(.counter + 1) as $counter
| .text += "\($counter)\(separator)\(item)\n"
| .counter = $counter;
{text:"", counter:0} | makeItem("first") | makeItem("second") | makeItem("third")
| .text
;
makeList(". ")