Remove jQuery from alert.js and add .alert only if jQuery is available

1 files changed, 4 insertions, 7 deletions

diff --git a/js/src/dom/selectorEngine.js b/js/src/dom/selectorEngine.js
index 1b33bf62d..f6f3fe82f 100644
--- a/js/src/dom/selectorEngine.js
+++ b/js/src/dom/selectorEngine.js
@@ -16,9 +16,8 @@ if (!Element.prototype.matches) {
 }
 
 // closest polyfill (see: https://mzl.la/2vXggaI)
-let fnClosest = null
 if (!Element.prototype.closest) {
-  fnClosest = (element, selector) => {
+  Element.prototype.closest = (element, selector) => {
     let ancestor = element
     if (!document.documentElement.contains(element)) {
       return null
@@ -34,12 +33,10 @@ if (!Element.prototype.closest) {
 
     return null
   }
-} else {
-  fnClosest = (element, selector) => {
-    return element.closest(selector)
-  }
 }
 
+const fnClosest = Element.prototype.closest
+
 const SelectorEngine = {
   matches(element, selector) {
     return fnMatches.call(element, selector)
@@ -59,7 +56,7 @@ const SelectorEngine = {
   },
 
   closest(element, selector) {
-    return fnClosest(element, selector)
+    return fnClosest.call(element, selector)
   }
 }