Replace old js files with modern code

modules/default/alert/notificationFx.js

@@ -1,4 +1,6 @@
 /**
+ * Code originally from
+ *
  * notificationFx.js v1.0.0
  * http://www.codrops.com
  *
@@ -8,40 +10,13 @@
  * Copyright 2014, Codrops
  * http://www.codrops.com
  */
-// jscs:disable
 ;(function(window) {
 
-	"use strict";
-
-	var docElem = window.document.documentElement,
-		support = {animations: Modernizr.cssanimations},
-		animEndEventNames = {
-			"WebkitAnimation": "webkitAnimationEnd",
-			"OAnimation": "oAnimationEnd",
-			"msAnimation": "MSAnimationEnd",
-			"animation": "animationend"
-		},
-		// animation end event name
-		animEndEventName = animEndEventNames[ Modernizr.prefixed("animation") ];
-
-	/**
-	 * extend obj function
-	 */
-	function extend(a, b) {
-		for (var key in b) {
-			if (b.hasOwnProperty(key)) {
-				a[key] = b[key];
-			}
-		}
-		return a;
-	}
-
 	/**
 	 * NotificationFx function
 	 */
 	function NotificationFx(options) {
-		this.options = extend({}, this.options);
-		extend(this.options, options);
+		this.options  = { ...this.options, ...options };
 		this._init();
 	}
 
@@ -82,7 +57,7 @@
 		// create HTML structure
 		this.ntf = document.createElement("div");
 		this.ntf.className = this.options.al_no +  " ns-" + this.options.layout + " ns-effect-" + this.options.effect + " ns-type-" + this.options.type;
-		var strinner = "<div class=\"ns-box-inner\">";
+		let strinner = "<div class=\"ns-box-inner\">";
 		strinner += this.options.message;
 		strinner += "</div>";
 		this.ntf.innerHTML = strinner;
@@ -91,13 +66,12 @@
 		this.options.wrapper.insertBefore(this.ntf, this.options.wrapper.nextSibling);
 
 		// dismiss after [options.ttl]ms
-		var self = this;
 		if (this.options.ttl) {
-			this.dismissttl = setTimeout(function() {
-			if (self.active) {
-				self.dismiss();
-			}
-		}, this.options.ttl);
+			this.dismissttl = setTimeout(() => {
+				if (this.active) {
+					this.dismiss();
+				}
+			}, this.options.ttl);
 		}
 
 		// init events
@@ -108,9 +82,8 @@
 	 * init events
 	 */
 	NotificationFx.prototype._initEvents = function() {
-		var self = this;
 		// dismiss notification by tapping on it if someone has a touchscreen
-		this.ntf.querySelector(".ns-box-inner").addEventListener("click", function() { self.dismiss(); });
+		this.ntf.querySelector(".ns-box-inner").addEventListener("click", () => { this.dismiss(); });
 	};
 
 	/**
@@ -118,8 +91,8 @@
 	 */
 	NotificationFx.prototype.show = function() {
 		this.active = true;
-		classie.remove(this.ntf, "ns-hide");
-		classie.add(this.ntf, "ns-show");
+		this.ntf.classList.remove("ns-hide");
+		this.ntf.classList.add("ns-show");
 		this.options.onOpen();
 	};
 
@@ -127,34 +100,27 @@
 	 * dismiss the notification
 	 */
 	NotificationFx.prototype.dismiss = function() {
-		var self = this;
 		this.active = false;
 		clearTimeout(this.dismissttl);
-		classie.remove(this.ntf, "ns-show");
-		setTimeout(function() {
-			classie.add(self.ntf, "ns-hide");
+		this.ntf.classList.remove("ns-show");
+		setTimeout(() => {
+			this.ntf.classList.add("ns-hide");
 
 			// callback
-			self.options.onClose();
+			this.options.onClose();
 		}, 25);
 
 		// after animation ends remove ntf from the DOM
-		var onEndAnimationFn = function(ev) {
-			if (support.animations) {
-				if (ev.target !== self.ntf) return false;
-				this.removeEventListener(animEndEventName, onEndAnimationFn);
-			}
+		const onEndAnimationFn = (ev) => {
+			if (ev.target !== this.ntf) return false;
+			this.ntf.removeEventListener("animationend", onEndAnimationFn);
 
-			if (this.parentNode === self.options.wrapper) {
-				self.options.wrapper.removeChild(this);
+			if (ev.target.parentNode === this.options.wrapper) {
+				this.options.wrapper.removeChild(this.ntf);
 			}
 		};
 
-		if (support.animations) {
-			this.ntf.addEventListener(animEndEventName, onEndAnimationFn);
-		} else {
-			onEndAnimationFn();
-		}
+		this.ntf.addEventListener("animationend", onEndAnimationFn);
 	};
 
 	/**