1 files changed, 10 insertions, 3 deletions
diff --git a/js/src/carousel.js b/js/src/carousel.js
index 34cab4391..e24aed08f 100644
--- a/js/src/carousel.js
+++ b/js/src/carousel.js
@@ -24,6 +24,8 @@ const Carousel = (($) => {
   const DATA_API_KEY        = '.data-api'
   const JQUERY_NO_CONFLICT  = $.fn[NAME]
   const TRANSITION_DURATION = 600
+  const ARROW_LEFT_KEYCODE  = 37 // KeyboardEvent.which value for left arrow key
+  const ARROW_RIGHT_KEYCODE = 39 // KeyboardEvent.which value for right arrow key
 
   const Default = {
     interval : 5000,
@@ -236,9 +238,14 @@ const Carousel = (($) => {
       }
 
       switch (event.which) {
-        case 37: this.prev(); break
-        case 39: this.next(); break
-        default: return
+        case ARROW_LEFT_KEYCODE:
+          this.prev()
+          break
+        case ARROW_RIGHT_KEYCODE:
+          this.next()
+          break
+        default:
+          return
       }
     }