Hi Ni Va,

You can choose what you like.

let list = ['foo', 'bar']
let pattern = 'oo'

echo map(copy(list), 'v:val =~# pattern ? v:key : v:val')
" or
echo map(copy(list), 'v:val =~# '.string(pattern).' ? v:key : v:val')
" or (Vim 8 or higher)
echo map(copy(list), {i,v -> v =~# pattern ? i : v})

2018-02-09 3:17 GMT+09:00 Ni Va <nivaem...@gmail.com>:
> Hi,
>
>
> How can I change list item's value by list index using map(.
>
>
> let list = ['foo', 'bar']
> let pattern = 'oo'
> let mappedlist = [0, 'bar']
>
> map(copy(s:xml), '(stridx(v:val,'.pattern.')>-1) ? v:key : v:val ')
>
>
> Thank you
>
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-- 
Takuya Fujiwara

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