Modernize syntax of examples on index page

We still support ES3 (as long as an ES3 syntax is used, obviously), but
let's not make ourselves look ancient and irrelevant.

index.html

@@ -74,8 +74,8 @@
   <a href="manual/Temporary-Instances.html" class="man">temporary instances</a>.
 </p>
 <pre class="js">
-  var inst = Foo( "John Doe" );
-  var inst = new Foo( "John Doe" );
+  const inst_a = Foo( "John Doe" );
+  const inst_b = new Foo( "John Doe" );
 
   // temporary instance
   Foo( "John Doe" ).sayHello();
@@ -103,7 +103,7 @@
   <tt>extend()</tt> method may be used.
 </p>
 <pre class="js">
-  var SturdyCow = Cow.extend( { /*...*/ } );
+  const SturdyCow = Cow.extend( { /*...*/ } );
 </pre>
 
 <p>

scripts/ex/access-modifiers-implicit.js

@@ -1,34 +1,34 @@
-var DatabaseRecord = Class( 'DatabaseRecord',
+const DatabaseRecord = Class( 'DatabaseRecord',
 {
     /* implicitly private */
     _connection: null,
 
 
-    __construct: function( host, user, pass )
+    constructor( host, user, pass )
     {
         this._connection = this._connect( host, user, pass );
     },
 
     /* implicitly private */
-    _connect: function( host, user, pass )
+    _connect( host, user, pass )
     {
         // (do connection stuff)
         return { host: host };
     },
 
-    'protected query': function( query )
+    'protected query'( query )
     {
         // perform query on this._connection, rather than exposing
         // this._connection to subtypes
     },
 
-    'protected escapeString': function( field )
+    'protected escapeString'( field )
     {
         return field.replace( "'", "\\'" );
     },
 
     /* public by default */
-    getName: function( id )
+    getName( id )
     {
         return this._query(
             "SELECT name FROM users WHERE id = '" +

scripts/ex/access-modifiers.js

@@ -1,31 +1,31 @@
-var DatabaseRecord = Class( 'DatabaseRecord',
+const DatabaseRecord = Class( 'DatabaseRecord',
 {
     'private _connection': null,
 
 
-    __construct: function( host, user, pass )
+    constructor( host, user, pass )
     {
         this._connection = this._connect( host, user, pass );
     },
 
-    'private _connect': function( host, user, pass )
+    'private _connect'( host, user, pass )
     {
         // (do connection stuff)
         return { host: host };
     },
 
-    'protected query': function( query )
+    'protected query'( query )
     {
         // perform query on this._connection, rather than exposing
         // this._connection to subtypes
     },
 
-    'protected escapeString': function( field )
+    'protected escapeString'( field )
     {
         return field.replace( "'", "\\'" );
     },
 
-    'public getName': function( id )
+    'public getName'( id )
     {
         return this._query(
             "SELECT name FROM users WHERE id = '" +

scripts/ex/class-abstract.js

@@ -1,6 +1,6 @@
-var Database = AbstractClass( 'Database',
+const Database = AbstractClass( 'Database',
 {
-    'public connect': function( user, pass )
+    'public connect'( user, pass )
     {
         if ( !( this.authenticate( user, pass ) ) )
         {
@@ -12,11 +12,11 @@ var Database = AbstractClass( 'Database',
     'abstract protected authenticate': [ 'user', 'pass' ],
 } );
 
-var MongoDatabase = Class( 'MongoDatabase' )
+const MongoDatabase = Class( 'MongoDatabase' )
     .extend( Database,
 {
     // must implement each argument for Database.authenticate()
-    'protected authenticate': function( user, pass )
+    'protected authenticate'( user, pass )
     {
         // ...
     },

scripts/ex/class-anon.js

@@ -1,12 +1,12 @@
-var Foo = Class(
+const Foo = Class(
     'private _name': '',
 
-    __construct: function( name )
+    constructor( name )
     {
         this._name = ''+( name );
     },
 
-    'public sayHello': function()
+    'public sayHello'()
     {
         return this._name + " says 'Hello!'";
     },

scripts/ex/class-extend.js

@@ -1,15 +1,15 @@
-var Cow = Class( 'Cow',
+const Cow = Class( 'Cow',
 {
-    'virtual public tip': function()
+    'virtual public tip'()
     {
         return "Omph.";
     },
 } );
 
-var SturdyCow = Class( 'SturdyCow' )
+const SturdyCow = Class( 'SturdyCow' )
     .extend( Cow,
 {
-    'override public tip': function()
+    'override public tip'()
     {
         return "Moo.";
     },

scripts/ex/class-final.js

@@ -1,6 +1,6 @@
-var Foo = FinalClass( 'Foo',
+const Foo = FinalClass( 'Foo',
 {
-    'public describe': function()
+    'public describe'()
     {
         return "I cannot be extended.";
     },

scripts/ex/class-poly.js

@@ -1,5 +1,5 @@
-var cow    = Cow(),
-    sturdy = SturdyCow();
+const cow    = Cow();
+const sturdy = SturdyCow();
 
 Class.isA( Cow, cow );           // true
 Class.isA( SturdyCow, cow );     // false

scripts/ex/class.js

@@ -1,15 +1,15 @@
-var Class = easejs.Class;
+const { Class } = easejs;
 
-var Stack = Class( 'Stack',
+const Stack = Class( 'Stack',
 {
     'private _stack': [],
 
-    'public push': function( value )
+    'public push'( value )
     {
         this._stack.push( value );
     },
 
-    'public pop': function()
+    'public pop'()
     {
         return this._stack.pop();
     },

scripts/ex/interface-2.js

@@ -1,23 +1,23 @@
-var ConcreteFilesystem = Class( 'ConcreteFilesystem' )
+const ConcreteFilesystem = Class( 'ConcreteFilesystem' )
     .implement( Filesystem )  // multiple interfaces as separate arguments
 {
-    'public open': function( path, mode )
+    'public open'( path, mode )
     {
         return { path: path, mode: mode };
     },
 
-    'public read': function( handle, length )
+    'public read'( handle, length )
     {
         return "";
     },
 
-    'public write': function( handle, data )
+    'public write'( handle, data )
     {
         // ...
         return data.length;
     },
 
-    'public close': function( handle )
+    'public close'( handle )
     {
         // ...
         return this;

scripts/ex/interface-3.js

@@ -1,2 +1,2 @@
-var inst = ConcreteFilesystem();
+const inst = ConcreteFilesystem();
 Class.isA( Filesystem, inst ); // true

scripts/ex/interface.js

@@ -1,4 +1,4 @@
-var Filesystem = Interface( 'Filesystem',
+const Filesystem = Interface( 'Filesystem',
 {
     'public open': [ 'path', 'mode' ],
 

scripts/ex/static-members.js

@@ -1,21 +1,21 @@
-var Cow = Class( 'Cow',
+const Cow = Class( 'Cow',
 {
     'const LEGS': 4,
 
     'private static _number': 0,
 
-    __construct: function()
+    constructor()
     {
         // __self refers to the class associated with this instance
-        this.__self.$( '_number' ) = this.__self.$( 'number' ) + 1;
+        this.__self.$( '_number' ) = this.__self.$( '_number' ) + 1;
     },
 
-    'public static create': function()
+    'public static create'()
     {
         return Cow();
     },
 
-    'public static getNumber': function(){
+    'public static getNumber'()
     {
         return this.__self.$( '_number' );
     },