Add comment about caching hintString.length.

Done with reference to commit bcf01ad7ec356c62cb1f8c0efcd83cd26c2d8a86.

1 files changed, 1 insertions, 0 deletions

diff --git a/linkHints.js b/linkHints.js
index f20a8e8e..f9a60857 100644
--- a/linkHints.js
+++ b/linkHints.js
@@ -347,6 +347,7 @@ var alphabetHints = {
     } while (number > 0);
 
     // Pad the hint string we're returning so that it matches numHintDigits.
+    // Note: the loop body changes hintString.length, so the original length must be cached!
     var hintStringLength = hintString.length;
     for (var i = 0; i < numHintDigits - hintStringLength; i++)
       hintString.unshift(settings.get('linkHintCharacters')[0]);