Merge commit 'b52fb5234cd7c11ecfae51897a6f7fa52e8777fc' into clippyup

1 files changed, 20 insertions, 0 deletions

diff --git a/src/docs/single_char_pattern.txt b/src/docs/single_char_pattern.txt
new file mode 100644
index 00000000000..9e5ad1e7d63
--- /dev/null
+++ b/src/docs/single_char_pattern.txt
@@ -0,0 +1,20 @@
+### What it does
+Checks for string methods that receive a single-character
+`str` as an argument, e.g., `_.split("x")`.
+
+### Why is this bad?
+Performing these methods using a `char` is faster than
+using a `str`.
+
+### Known problems
+Does not catch multi-byte unicode characters.
+
+### Example
+```
+_.split("x");
+```
+
+Use instead:
+```
+_.split('x');
+```
\ No newline at end of file