From 30861cbc6d450d70e646e2b1b35223f14d3d6973 Mon Sep 17 00:00:00 2001
From: XhmikosR <xhmikosr@gmail.com>
Date: Wed, 13 Feb 2019 21:40:15 +0200
Subject: [PATCH] Simplify checks.

---
 js/src/dom/eventHandler.js | 7 +++----
 js/src/dom/manipulator.js  | 2 +-
 js/src/util.js             | 4 ++--
 3 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/js/src/dom/eventHandler.js b/js/src/dom/eventHandler.js
index c3d4f000a3..9049acfb62 100644
--- 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 5210f8b2c6..31d0252c65 100644
--- 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 5467b9dab5..8b6226f61c 100644
--- 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
     }