Simplify checks.

diff --git a/js/src/dom/eventHandler.js b/js/src/dom/eventHandler.js
index c3d4f000a3a133af1400c5f1aaa4c982e7afece3..9049acfb627330b1f3b7266895d6a3805549f891 100644 (file)
--- a/js/src/dom/eventHandler.js
+++ b/js/src/dom/eventHandler.js
@@ -132,7 +132,7 @@ function normalizeParams(originalTypeEvent, handler, delegationFn) {
 }
 
 function addHandler(element, originalTypeEvent, handler, delegationFn, oneOff) {
-  if (typeof originalTypeEvent !== 'string' || (typeof element === 'undefined' || element === null)) {
+  if (typeof originalTypeEvent !== 'string' || !element) {
     return
   }
 
@@ -198,7 +198,7 @@ const EventHandler = {
   },
 
   off(element, originalTypeEvent, handler, delegationFn) {
-    if (typeof originalTypeEvent !== 'string' || (typeof element === 'undefined' || element === null)) {
+    if (typeof originalTypeEvent !== 'string' || !element) {
       return
     }
 
@@ -243,8 +243,7 @@ const EventHandler = {
   },
 
   trigger(element, event, args) {
-    if (typeof event !== 'string' ||
-        (typeof element === 'undefined' || element === null)) {
+    if (typeof event !== 'string' || !element) {
       return null
     }
 

diff --git a/js/src/dom/manipulator.js b/js/src/dom/manipulator.js
index 5210f8b2c6825f7005b5589ad1ca29650a67c6ac..31d0252c651d126e2ef93e9737e9cef177164f7f 100644 (file)
--- a/js/src/dom/manipulator.js
+++ b/js/src/dom/manipulator.js
@@ -76,7 +76,7 @@ const Manipulator = {
   },
 
   toggleClass(element, className) {
-    if (typeof element === 'undefined' || element === null) {
+    if (!element) {
       return
     }
 

diff --git a/js/src/util.js b/js/src/util.js
index 5467b9dab5bd1ed31cd1d53d222a7fcc412cfd1d..8b6226f61cccc1c67afa683de3cfd7aba7b85b22 100644 (file)
--- a/js/src/util.js
+++ b/js/src/util.js
@@ -123,7 +123,7 @@ const Util = {
   },
 
   makeArray(nodeList) {
-    if (typeof nodeList === 'undefined' || nodeList === null) {
+    if (!nodeList) {
       return []
     }
 
@@ -131,7 +131,7 @@ const Util = {
   },
 
   isVisible(element) {
-    if (typeof element === 'undefined' || element === null) {
+    if (!element) {
       return false
     }