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Diffstat (limited to 'src/docs/flat_map_option.txt')
| -rw-r--r-- | src/docs/flat_map_option.txt | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/src/docs/flat_map_option.txt b/src/docs/flat_map_option.txt deleted file mode 100644 index d50b9156d36..00000000000 --- a/src/docs/flat_map_option.txt +++ /dev/null @@ -1,16 +0,0 @@ -### What it does -Checks for usages of `Iterator::flat_map()` where `filter_map()` could be -used instead. - -### Why is this bad? -When applicable, `filter_map()` is more clear since it shows that -`Option` is used to produce 0 or 1 items. - -### Example -``` -let nums: Vec<i32> = ["1", "2", "whee!"].iter().flat_map(|x| x.parse().ok()).collect(); -``` -Use instead: -``` -let nums: Vec<i32> = ["1", "2", "whee!"].iter().filter_map(|x| x.parse().ok()).collect(); -``` \ No newline at end of file |
