Mercurial > vim
diff runtime/doc/eval.txt @ 26638:6fd15d82e898 v8.2.3848
patch 8.2.3848: cannot use reduce() for a string
Commit: https://github.com/vim/vim/commit/0ccb5842f5fb103763d106c7aa364d758343c35a
Author: rbtnn <naru123456789@gmail.com>
Date: Sat Dec 18 18:33:46 2021 +0000
patch 8.2.3848: cannot use reduce() for a string
Problem: Cannot use reduce() for a string.
Solution: Make reduce() work with a string. (Naruhiko Nishino, closes https://github.com/vim/vim/issues/9366)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 18 Dec 2021 19:45:03 +0100 |
| parents | 3a63b1e4a6f4 |
| children | 7c055fdd6200 |
line wrap: on
line diff
--- a/runtime/doc/eval.txt +++ b/runtime/doc/eval.txt @@ -8959,9 +8959,9 @@ readfile({fname} [, {type} [, {max}]]) reduce({object}, {func} [, {initial}]) *reduce()* *E998* {func} is called for every item in {object}, which can be a - |List| or a |Blob|. {func} is called with two arguments: the - result so far and current item. After processing all items - the result is returned. + |String|, |List| or a |Blob|. {func} is called with two arguments: + the result so far and current item. After processing all + items the result is returned. {initial} is the initial result. When omitted, the first item in {object} is used and {func} is first called for the second @@ -8972,6 +8972,7 @@ reduce({object}, {func} [, {initial}]) echo reduce([1, 3, 5], { acc, val -> acc + val }) echo reduce(['x', 'y'], { acc, val -> acc .. val }, 'a') echo reduce(0z1122, { acc, val -> 2 * acc + val }) + echo reduce('xyz', { acc, val -> acc .. ',' .. val }) < Can also be used as a |method|: > echo mylist->reduce({ acc, val -> acc + val }, 0)