resolve all no-plusplus eslint violations

1 files changed, 3 insertions, 3 deletions

diff --git a/app/assets/javascripts/extensions/element.js.es6 b/app/assets/javascripts/extensions/element.js.es6
index 3f12ad9ff9f..90ab79305a7 100644
--- a/app/assets/javascripts/extensions/element.js.es6
+++ b/app/assets/javascripts/extensions/element.js.es6
@@ -1,5 +1,5 @@
 /* global Element */
-/* eslint-disable consistent-return, max-len, no-empty, no-plusplus, func-names */
+/* eslint-disable consistent-return, max-len, no-empty, func-names */
 
 Element.prototype.closest = Element.prototype.closest || function closest(selector, selectedElement = this) {
   if (!selectedElement) return;
@@ -14,7 +14,7 @@ Element.prototype.matches = Element.prototype.matches ||
   Element.prototype.webkitMatchesSelector ||
   function (s) {
     const matches = (this.document || this.ownerDocument).querySelectorAll(s);
-    let i = matches.length;
-    while (--i >= 0 && matches.item(i) !== this) {}
+    let i = matches.length - 1;
+    while (i >= 0 && matches.item(i) !== this) { i -= 1; }
     return i > -1;
   };