diff --git a/snippets/inRange.md b/snippets/inRange.md
index b970fa8c1..f98535f86 100644
--- a/snippets/inRange.md
+++ b/snippets/inRange.md
@@ -5,7 +5,10 @@ Checks if the given number falls in the given range.
 `end` is an optional parameter. If `end` is not given, the range is considered from `0` to `start`.  
 
 ```js
-const inRange = (n, start, end=null) => (end == null) ? (n>=0 && n<=start) : (n>=start && n<=end);
+const inRange = (n, start, end=null) => {
+	if(end && start > end) end = [start, start=end][0]
+	return (end == null) ? (n>=0 && n<start) : (n>=start && n<end);
+}
 
 // inRange(3, 2, 5) -> true
 // inRange(3, 4) -> true