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J, 4 bytes -:|. Try it online! Checks if the input array matches itself reversed. This is a tacit form and is executed monadically as x f (g x).
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#1: Initial revision
by
south
·
2022-01-20T11:13:24Z (almost 3 years ago)
# [J](https://www.jsoftware.com/#/), 4 bytes ``` -:|. ``` [Try it online!](https://tio.run/##y/r/PzU5I1/BTkdPQ9eqRk9TTc9O3VABCtWt1Q3ALDMFcyDbUP3/fwA) Checks if the input array matches itself reversed. This is a tacit form and is executed monadically as `x f (g x)`.