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{$["j";x in V]'[x;"_"]} / Case
https://code.kx.com/q/learn/reading/strings/#c_ns_n_nts
{$[“j”;x in V]'[x;”_”]} / Case
May I ask how does each both work here please?
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1 Reply
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As the comment says, this is case, https://code.kx.com/q/ref/maps/#case
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