Add clarifying comment for negative indices

sinonjs · Jan 15, 2020 · d851a5e · d851a5e
1 parent 6d59744
commit d851a5e
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/sinon/proxy.js b/lib/sinon/proxy.js
@@ -43,6 +43,7 @@ var proxyApi = {
     getCall: function getCall(index) {
         var i = index;
         if (i < 0) {
+            // Negative indices means counting backwards from the last call
             i += this.callCount;
         }
         if (i < 0 || i >= this.callCount) {