{{ first(map(array; "property"; "key"; "value")) }}
e.g.:
{{ first(map(1.array; "price"; "age"; "10")) }}
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Did you know, the concepts of about 70% of questions asked on this forum are already covered in the Make Academy. Investing some effort into it will save you lots of time and frustration using Make later!