docs(collections): add description for single

denoland · Aug 27, 2021 · 6c74b61 · 6c74b61
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diff --git a/collections/README.md b/collections/README.md
@@ -398,7 +398,7 @@ console.assert(
 ### single
 
 Returns the only element in the given collection matching the given predicate.
-Returns undefined if there is none.
+Returns undefined if there is none or multiple matches for the predicate.
 
 ```ts
 import { single } from "https://deno.land/std@$STD_VERSION/collections/mod.ts";

diff --git a/collections/single.ts b/collections/single.ts
@@ -1,7 +1,7 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 
 /**
- * Returns the only element in the given collection matching the given predicate. Returns undefined if there is none.
+ * Returns the only element in the given collection matching the given predicate. Returns undefined if there is none or multiple matches for the predicate.
  *
  * Example:
  *