More var -> let/const conversions

js/class.js

@@ -8,8 +8,8 @@
  * MIT Licensed.
  */
 (function () {
-	var initializing = false;
-	var fnTest = /xyz/.test(function () {
+	let initializing = false;
+	const fnTest = /xyz/.test(function () {
 		xyz;
 	})
 		? /\b_super\b/
@@ -20,27 +20,27 @@
 
 	// Create a new Class that inherits from this class
 	Class.extend = function (prop) {
-		var _super = this.prototype;
+		let _super = this.prototype;
 
 		// Instantiate a base class (but only create the instance,
 		// don't run the init constructor)
 		initializing = true;
-		var prototype = new this();
+		const prototype = new this();
 		initializing = false;
 
 		// Make a copy of all prototype properties, to prevent reference issues.
-		for (var p in prototype) {
+		for (const p in prototype) {
 			prototype[p] = cloneObject(prototype[p]);
 		}
 
 		// Copy the properties over onto the new prototype
-		for (var name in prop) {
+		for (const name in prop) {
 			// Check if we're overwriting an existing function
 			prototype[name] =
 				typeof prop[name] === "function" && typeof _super[name] === "function" && fnTest.test(prop[name])
 					? (function (name, fn) {
 							return function () {
-								var tmp = this._super;
+								const tmp = this._super;
 
 								// Add a new ._super() method that is the same method
 								// but on the super-class
@@ -48,7 +48,7 @@
 
 								// The method only need to be bound temporarily, so we
 								// remove it when we're done executing
-								var ret = fn.apply(this, arguments);
+								const ret = fn.apply(this, arguments);
 								this._super = tmp;
 
 								return ret;
@@ -91,8 +91,8 @@ function cloneObject(obj) {
 		return obj;
 	}
 
-	var temp = obj.constructor(); // give temp the original obj's constructor
-	for (var key in obj) {
+	const temp = obj.constructor(); // give temp the original obj's constructor
+	for (const key in obj) {
 		temp[key] = cloneObject(obj[key]);
 
 		if (key === "lockStrings") {