diff options
| author | Yegappan Lakshmanan <yegappan@yahoo.com> | 2021-12-19 10:35:15 +0000 |
|---|---|---|
| committer | Bram Moolenaar <Bram@vim.org> | 2021-12-19 10:35:15 +0000 |
| commit | 389b72196e6aaeafe3f907c73d271f2c6b931140 (patch) | |
| tree | 4afb251968ba13c94cc8cbaa8daf7cf8a3279518 /runtime | |
| parent | 0ccb5842f5fb103763d106c7aa364d758343c35a (diff) | |
patch 8.2.3849: functions implementing reduce and map are too longv8.2.3849
Problem: Functions implementing reduce and map are too long.
Solution: Use a function for each type of value. Add a few more test cases
and add to the help. (Yegappan Lakshmanan, closes #9370)
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/doc/eval.txt | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt index d54523f965..db8e1002dc 100644 --- a/runtime/doc/eval.txt +++ b/runtime/doc/eval.txt @@ -4893,7 +4893,8 @@ filter({expr1}, {expr2}) *filter()* of the current item. For a |Dictionary| |v:key| has the key of the current item and for a |List| |v:key| has the index of the current item. For a |Blob| |v:key| has the index of the - current byte. + current byte. For a |String| |v:key| has the index of the + current character. Examples: > call filter(mylist, 'v:val !~ "OLD"') < Removes the items where "OLD" appears. > @@ -7588,7 +7589,8 @@ map({expr1}, {expr2}) *map()* of the current item. For a |Dictionary| |v:key| has the key of the current item and for a |List| |v:key| has the index of the current item. For a |Blob| |v:key| has the index of the - current byte. + current byte. For a |String| |v:key| has the index of the + current character. Example: > :call map(mylist, '"> " . v:val . " <"') < This puts "> " before and " <" after each item in "mylist". @@ -8959,9 +8961,9 @@ readfile({fname} [, {type} [, {max}]]) reduce({object}, {func} [, {initial}]) *reduce()* *E998* {func} is called for every item in {object}, which can be a - |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. + |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 |