Re: [Jgeneral] finding the index of an element in a list

[metaperl.j]

metaperl.j wrote:
> 
> tally_map =: value = y
> 

Typo city. Here's the solution:

indexOf =: 4 : 0
indices =: i. # x
tally_map =: x = y
tally_map # indices
)

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