Join template literals

diff --git a/js/src/scrollspy.js b/js/src/scrollspy.js
index 108b6f067bfb53a92bd6eefa191160b0fe08660d..6c72ba3e254c391e394258885d3980336dec296a 100644 (file)
--- a/js/src/scrollspy.js
+++ b/js/src/scrollspy.js
@@ -70,9 +70,7 @@ class ScrollSpy {
     this._element = element
     this._scrollElement = element.tagName === 'BODY' ? window : element
     this._config = this._getConfig(config)
-    this._selector = `${this._config.target} ${SELECTOR_NAV_LINKS},` +
-                          `${this._config.target} ${SELECTOR_LIST_ITEMS},` +
-                          `${this._config.target} .${CLASS_NAME_DROPDOWN_ITEM}`
+    this._selector = `${this._config.target} ${SELECTOR_NAV_LINKS}, ${this._config.target} ${SELECTOR_LIST_ITEMS}, ${this._config.target} .${CLASS_NAME_DROPDOWN_ITEM}`
     this._offsets = []
     this._targets = []
     this._activeTarget = null