diff --git a/client/js/controls/post_notes_overlay_control.js b/client/js/controls/post_notes_overlay_control.js
index 26381ff..14b00cc 100644
--- a/client/js/controls/post_notes_overlay_control.js
+++ b/client/js/controls/post_notes_overlay_control.js
@@ -199,10 +199,11 @@ class SelectedState extends ActiveState {
             e.stopPropagation();
             e.stopImmediatePropagation();
             e.preventDefault();
+            const args = offsetMap[e.which];
             if (e.shiftKey) {
-                this._scaleEditedNote(...offsetMap[e.which]);
+                this._scaleEditedNote(...args);
             } else {
-                this._moveEditedNote(...offsetMap[e.which]);
+                this._moveEditedNote(...args);
             }
         }
     }
diff --git a/client/js/controls/tag_input_control.js b/client/js/controls/tag_input_control.js
index a579f15..2912b0f 100644
--- a/client/js/controls/tag_input_control.js
+++ b/client/js/controls/tag_input_control.js
@@ -366,8 +366,8 @@ class TagInputControl extends events.EventTarget {
             }, response => {
                 return Promise.resolve([]);
             }).then(siblings => {
-                let maxSiblingOccurrences = Math.max(
-                    1, ...siblings.map(s => s.occurrences));
+                const args = siblings.map(s => s.occurrences);
+                let maxSiblingOccurrences = Math.max(1, ...args);
                 for (let sibling of siblings) {
                     this._suggestions.set(
                         sibling.tag.names[0],