From b11438f211ed7009335bc18f5cbf2950fc4014fa Mon Sep 17 00:00:00 2001
From: Ward Bell <wardbell@hotmail.com>
Date: Fri, 11 Nov 2016 19:44:00 -0800
Subject: [PATCH] docs(ts-to-js): add separate template files for some
 components

---
 .../app/confirm.component.html                |   6 +
 .../hero-di-inject-additional.component.es6   |   9 +-
 .../app/hero-io.component.es6                 |  10 +-
 .../app/title.component.html                  |   3 +
 .../js-es6/app/confirm.component.html         |   6 +
 .../hero-di-inject-additional.component.es6   |   9 +-
 .../js-es6/app/hero-io.component.es6          |  10 +-
 .../js-es6/app/title.component.html           |   3 +
 .../cb-ts-to-js/js/app/confirm.component.html |   6 +
 .../hero-di-inject-additional.component.js    |  10 +-
 .../cb-ts-to-js/js/app/hero-io.component.js   |  10 +-
 .../cb-ts-to-js/js/app/title.component.html   |   3 +
 .../docs/_examples/cb-ts-to-js/js/index.html  |   1 -
 .../cb-ts-to-js/ts/app/confirm.component.html |   6 +
 .../hero-di-inject-additional.component.ts    |   9 +-
 .../cb-ts-to-js/ts/app/hero-io.component.ts   |  10 +-
 .../cb-ts-to-js/ts/app/title.component.html   |   4 +
 public/docs/ts/latest/cookbook/ts-to-js.jade  | 129 ++++++++++++------
 18 files changed, 148 insertions(+), 96 deletions(-)
 create mode 100644 public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/confirm.component.html
 create mode 100644 public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/title.component.html
 create mode 100644 public/docs/_examples/cb-ts-to-js/js-es6/app/confirm.component.html
 create mode 100644 public/docs/_examples/cb-ts-to-js/js-es6/app/title.component.html
 create mode 100644 public/docs/_examples/cb-ts-to-js/js/app/confirm.component.html
 create mode 100644 public/docs/_examples/cb-ts-to-js/js/app/title.component.html
 create mode 100644 public/docs/_examples/cb-ts-to-js/ts/app/confirm.component.html
 create mode 100644 public/docs/_examples/cb-ts-to-js/ts/app/title.component.html

diff --git a/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/confirm.component.html b/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/confirm.component.html
new file mode 100644
index 0000000000..917bd1696f
--- /dev/null
+++ b/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/confirm.component.html
@@ -0,0 +1,6 @@
+<button (click)="onOkClick()">
+  {{okMsg}}
+</button>
+<button (click)="onNotOkClick()">
+  {{notOkMsg}}
+</button>
diff --git a/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/hero-di-inject-additional.component.es6 b/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/hero-di-inject-additional.component.es6
index 8cd77b51f6..83e3dab59f 100644
--- a/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/hero-di-inject-additional.component.es6
+++ b/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/hero-di-inject-additional.component.es6
@@ -8,14 +8,13 @@ import {
 import { BrowserModule } from '@angular/platform-browser';
 
 // #docregion
+// #docregion metadata
 @Component({
+  moduleId: module.id,
   selector: 'hero-title',
-  template: `
-    <h1>{{titlePrefix}} {{title}}</h1>
-    <button (click)="ok()">OK</button>
-    <p>{{ msg }}</p>
-  `
+  templateUrl: 'title.component.html'
 })
+// #enddocregion metadata
 class TitleComponent {
   msg = '';
   constructor(
diff --git a/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/hero-io.component.es6 b/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/hero-io.component.es6
index 2b954b138a..dddbb34733 100644
--- a/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/hero-io.component.es6
+++ b/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/hero-io.component.es6
@@ -9,15 +9,9 @@ import { BrowserModule } from '@angular/platform-browser';
 
 // #docregion
 @Component({
+  moduleId: module.id,
   selector: 'my-confirm',
-  template: `
-    <button (click)="onOkClick()">
-      {{okMsg}}
-    </button>
-    <button (click)="onNotOkClick()">
-      {{notOkMsg}}
-    </button>
-  `
+  templateUrl: 'confirm.component.html'
 })
 class ConfirmComponent {
   @Input() okMsg;
diff --git a/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/title.component.html b/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/title.component.html
new file mode 100644
index 0000000000..06d6f3db91
--- /dev/null
+++ b/public/docs/_examples/cb-ts-to-js/js-es6-decorators/app/title.component.html
@@ -0,0 +1,3 @@
+<h1>{{titlePrefix}} {{title}}</h1>
+<button (click)="ok()">OK</button>
+<p>{{ msg }}</p>
diff --git a/public/docs/_examples/cb-ts-to-js/js-es6/app/confirm.component.html b/public/docs/_examples/cb-ts-to-js/js-es6/app/confirm.component.html
new file mode 100644
index 0000000000..917bd1696f
--- /dev/null
+++ b/public/docs/_examples/cb-ts-to-js/js-es6/app/confirm.component.html
@@ -0,0 +1,6 @@
+<button (click)="onOkClick()">
+  {{okMsg}}
+</button>
+<button (click)="onNotOkClick()">
+  {{notOkMsg}}
+</button>
diff --git a/public/docs/_examples/cb-ts-to-js/js-es6/app/hero-di-inject-additional.component.es6 b/public/docs/_examples/cb-ts-to-js/js-es6/app/hero-di-inject-additional.component.es6
index 295d305ac4..398e38d352 100644
--- a/public/docs/_examples/cb-ts-to-js/js-es6/app/hero-di-inject-additional.component.es6
+++ b/public/docs/_examples/cb-ts-to-js/js-es6/app/hero-di-inject-additional.component.es6
@@ -20,16 +20,15 @@ class TitleComponent {
   }
 }
 
+// #docregion metadata
 TitleComponent.annotations = [
   new Component({
+    moduleId: module.id,
     selector: 'hero-title',
-    template: `
-      <h1>{{titlePrefix}} {{title}}</h1>
-      <button (click)="ok()">OK</button>
-      <p>{{ msg }}</p>
-    `
+    templateUrl: 'title.component.html'
   })
 ];
+// #enddocregion metadata
 
 TitleComponent.parameters = [
   [new Optional(), new Inject('titlePrefix')],
diff --git a/public/docs/_examples/cb-ts-to-js/js-es6/app/hero-io.component.es6 b/public/docs/_examples/cb-ts-to-js/js-es6/app/hero-io.component.es6
index 549d75ce7c..3ed92792db 100644
--- a/public/docs/_examples/cb-ts-to-js/js-es6/app/hero-io.component.es6
+++ b/public/docs/_examples/cb-ts-to-js/js-es6/app/hero-io.component.es6
@@ -23,15 +23,9 @@ class ConfirmComponent {
 
 ConfirmComponent.annotations = [
   new Component({
+    moduleId: module.id,
     selector: 'my-confirm',
-    template: `
-      <button (click)="onOkClick()">
-        {{okMsg}}
-      </button>
-      <button (click)="onNotOkClick()">
-        {{notOkMsg}}
-      </button>
-    `,
+    templateUrl: 'confirm.component.html',
     inputs: [
       'okMsg',
       'notOkMsg: cancelMsg'
diff --git a/public/docs/_examples/cb-ts-to-js/js-es6/app/title.component.html b/public/docs/_examples/cb-ts-to-js/js-es6/app/title.component.html
new file mode 100644
index 0000000000..06d6f3db91
--- /dev/null
+++ b/public/docs/_examples/cb-ts-to-js/js-es6/app/title.component.html
@@ -0,0 +1,3 @@
+<h1>{{titlePrefix}} {{title}}</h1>
+<button (click)="ok()">OK</button>
+<p>{{ msg }}</p>
diff --git a/public/docs/_examples/cb-ts-to-js/js/app/confirm.component.html b/public/docs/_examples/cb-ts-to-js/js/app/confirm.component.html
new file mode 100644
index 0000000000..917bd1696f
--- /dev/null
+++ b/public/docs/_examples/cb-ts-to-js/js/app/confirm.component.html
@@ -0,0 +1,6 @@
+<button (click)="onOkClick()">
+  {{okMsg}}
+</button>
+<button (click)="onNotOkClick()">
+  {{notOkMsg}}
+</button>
diff --git a/public/docs/_examples/cb-ts-to-js/js/app/hero-di-inject-additional.component.js b/public/docs/_examples/cb-ts-to-js/js/app/hero-di-inject-additional.component.js
index 64009317a9..127bf524a8 100644
--- a/public/docs/_examples/cb-ts-to-js/js/app/hero-di-inject-additional.component.js
+++ b/public/docs/_examples/cb-ts-to-js/js/app/hero-di-inject-additional.component.js
@@ -1,13 +1,13 @@
 (function(app) {
 
   // #docregion
+  // #docregion metadata
   var TitleComponent = ng.core.Component({
     selector: 'hero-title',
-    template:
-      '<h1>{{titlePrefix}} {{title}}</h1>' +
-      '<button (click)="ok()">OK</button>' +
-      '<p>{{ msg }}</p>'
-  }).Class({
+    templateUrl: 'app/title.component.html'
+  })
+  // #enddocregion metadata
+  .Class({
     constructor: [
       [ new ng.core.Optional(), new ng.core.Inject('titlePrefix') ],
       new ng.core.Attribute('title'),
diff --git a/public/docs/_examples/cb-ts-to-js/js/app/hero-io.component.js b/public/docs/_examples/cb-ts-to-js/js/app/hero-io.component.js
index 79aef12125..611d3b842b 100644
--- a/public/docs/_examples/cb-ts-to-js/js/app/hero-io.component.js
+++ b/public/docs/_examples/cb-ts-to-js/js/app/hero-io.component.js
@@ -2,6 +2,7 @@
   // #docregion
   var ConfirmComponent = ng.core.Component({
     selector: 'my-confirm',
+    templateUrl: 'app/confirm.component.html',
     inputs: [
       'okMsg',
       'notOkMsg: cancelMsg'
@@ -9,14 +10,7 @@
     outputs: [
       'ok',
       'notOk: cancel'
-    ],
-    template:
-      '<button (click)="onOkClick()">' +
-        '{{okMsg}}' +
-      '</button>' +
-      '<button (click)="onNotOkClick()">' +
-        '{{notOkMsg}}' +
-      '</button>'
+    ]
   }).Class({
     constructor: function() {
       this.ok = new ng.core.EventEmitter();
diff --git a/public/docs/_examples/cb-ts-to-js/js/app/title.component.html b/public/docs/_examples/cb-ts-to-js/js/app/title.component.html
new file mode 100644
index 0000000000..06d6f3db91
--- /dev/null
+++ b/public/docs/_examples/cb-ts-to-js/js/app/title.component.html
@@ -0,0 +1,3 @@
+<h1>{{titlePrefix}} {{title}}</h1>
+<button (click)="ok()">OK</button>
+<p>{{ msg }}</p>
diff --git a/public/docs/_examples/cb-ts-to-js/js/index.html b/public/docs/_examples/cb-ts-to-js/js/index.html
index 448c295609..3c2dd6eeca 100644
--- a/public/docs/_examples/cb-ts-to-js/js/index.html
+++ b/public/docs/_examples/cb-ts-to-js/js/index.html
@@ -16,7 +16,6 @@
     <script src="node_modules/@angular/compiler/bundles/compiler.umd.js"></script>
     <script src="node_modules/@angular/platform-browser/bundles/platform-browser.umd.js"></script>
     <script src="node_modules/@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js"></script>
-    <script src="node_modules/@angular/router-deprecated/bundles/router-deprecated.umd.js"></script>
 
     <script src="app/data.service.js"></script>
     <script src="app/hero.component.js"></script>
diff --git a/public/docs/_examples/cb-ts-to-js/ts/app/confirm.component.html b/public/docs/_examples/cb-ts-to-js/ts/app/confirm.component.html
new file mode 100644
index 0000000000..917bd1696f
--- /dev/null
+++ b/public/docs/_examples/cb-ts-to-js/ts/app/confirm.component.html
@@ -0,0 +1,6 @@
+<button (click)="onOkClick()">
+  {{okMsg}}
+</button>
+<button (click)="onNotOkClick()">
+  {{notOkMsg}}
+</button>
diff --git a/public/docs/_examples/cb-ts-to-js/ts/app/hero-di-inject-additional.component.ts b/public/docs/_examples/cb-ts-to-js/ts/app/hero-di-inject-additional.component.ts
index d36b3eff19..37e00960c9 100644
--- a/public/docs/_examples/cb-ts-to-js/ts/app/hero-di-inject-additional.component.ts
+++ b/public/docs/_examples/cb-ts-to-js/ts/app/hero-di-inject-additional.component.ts
@@ -8,14 +8,13 @@ import {
 import { BrowserModule } from '@angular/platform-browser';
 
 // #docregion
+// #docregion metadata
 @Component({
+  moduleId: module.id,
   selector: 'hero-title',
-  template: `
-    <h1>{{titlePrefix}} {{title}}</h1>
-    <button (click)="ok()">OK</button>
-    <p>{{ msg }}</p>
-  `
+  templateUrl: 'title.component.html'
 })
+// #enddocregion metadata
 class TitleComponent {
   private msg: string = '';
   constructor(
diff --git a/public/docs/_examples/cb-ts-to-js/ts/app/hero-io.component.ts b/public/docs/_examples/cb-ts-to-js/ts/app/hero-io.component.ts
index 8cf430c000..8105d98919 100644
--- a/public/docs/_examples/cb-ts-to-js/ts/app/hero-io.component.ts
+++ b/public/docs/_examples/cb-ts-to-js/ts/app/hero-io.component.ts
@@ -9,15 +9,9 @@ import { BrowserModule } from '@angular/platform-browser';
 
 // #docregion
 @Component({
+  moduleId: module.id,
   selector: 'my-confirm',
-  template: `
-    <button (click)="onOkClick()">
-      {{okMsg}}
-    </button>
-    <button (click)="onNotOkClick()">
-      {{notOkMsg}}
-    </button>
-  `
+  templateUrl: 'confirm.component.html'
 })
 class ConfirmComponent {
   @Input() okMsg: string;
diff --git a/public/docs/_examples/cb-ts-to-js/ts/app/title.component.html b/public/docs/_examples/cb-ts-to-js/ts/app/title.component.html
new file mode 100644
index 0000000000..0e93122d5c
--- /dev/null
+++ b/public/docs/_examples/cb-ts-to-js/ts/app/title.component.html
@@ -0,0 +1,4 @@
+<!-- #docregion -->
+<h1>{{titlePrefix}} {{title}}</h1>
+<button (click)="ok()">OK</button>
+<p>{{ msg }}</p>
diff --git a/public/docs/ts/latest/cookbook/ts-to-js.jade b/public/docs/ts/latest/cookbook/ts-to-js.jade
index 966d1383fe..0c3ba61544 100644
--- a/public/docs/ts/latest/cookbook/ts-to-js.jade
+++ b/public/docs/ts/latest/cookbook/ts-to-js.jade
@@ -80,7 +80,7 @@ a#modularity
 
   In both _TypeScript_ and _ES6_, you import Angular classes, functions, and other members with _ES6_ `import` statements.
 
-  In _ES5_, you access the Angular entities of the [the Angular packages](../glossary.html#!#scoped-package),
+  In _ES5_, you access the Angular entities of the [the Angular packages](../glossary.html#!#scoped-package)
   through the global `ng` object. 
   Everything you would have imported from `@angular` is a nested member of this `ng` object:
 
@@ -102,23 +102,29 @@ a#modularity
   `)
 
 :marked
-  ### Importing and Exporting Application Code
+  ### Exporting Application Code
 
   Each file in a _TypeScript_ or _ES6_ Angular application constitutes an _ES6_ module.
   When you want to make something available to other modules, you `export` it.
 
   _ES5_ lacks native support for modules. 
-  In an Angular _ES5_ application, you load each file manually by adding a `<script>` tag to the host web page, `index.html`. 
+  In an Angular _ES5_ application, you load each file manually by adding a `<script>` tag to `index.html`. 
+.alert.is-important
+  :marked
+    The order of `<script>` tags is often significant. 
+    You must load a file that defines a public JavaScript entity before a file that references that entity.
+:marked
+  The best practice in _ES5_ is to create a form of modularity that avoids polluting the global scope. 
+  Add one application namespace object such as `app` to the global `document`.
+  Then each code file "exports" public entities by attaching them to that namespace object, e.g., `app.HeroComponent`.
+  You could factor a large application into several sub-namespaces 
+  which leads to "exports" along the lines of `app.heroes.HeroComponent`.
   
-  Each code file can make selected entities available to other files via the shared global `window` scope.
-  But this is widely thought to be a bad practice.
-  Instead, you should add one application namespace object (such as `app`) to `window`.
-  Then attach everything you need to share to that namespace object.
+  Every file should wrap _ES5_ code in an 
+  [Immediately Invoked Function Expression (IIFE)](https://en.wikipedia.org/wiki/Immediately-invoked_function_expression)
+  to limit unintentional leaking of private symbols into the global scope.
   
-  You should also wrap your code in an 
-  [Immediately Invoked Function Expression (IIFE)](https://en.wikipedia.org/wiki/Immediately-invoked_function_expression).
-  
-  These practices together help you avoid polluting the global scope.
+  Here is a `HeroComponent` as it might be defined and "exported" in each of the four language variants.
 
 +makeTabs(`
     cb-ts-to-js/ts/app/hero.component.ts,
@@ -138,11 +144,11 @@ a#modularity
   `)
 
 :marked
+  ### Importing Application Code
+
   In _TypeScript_ and _ES6_ apps, you `import` things that have been exported from other modules.
 
-  In _ES5_ you use the shared namespace object to access "exported" entities in other files.
-  Note that the order of `<script>` tags on the page is often significant. 
-  You must load a file that defines a shared member before a file that uses that member.
+  In _ES5_ you use the shared namespace object to access "exported" entities from other files.
 
 +makeTabs(`
     cb-ts-to-js/ts/app/main.ts,
@@ -180,8 +186,7 @@ a#class-metadata
   In _ES6-without-decorators_, properties of classes must be assigned inside the constructor.
 
   _ES5_ JavaScript has no classes. 
-  Use the constructor function pattern instead adding methods to the prototype.
-  This works with Angular as well as classes do.
+  Use the constructor function pattern instead, adding methods to the prototype.
 
 +makeTabs(`
     cb-ts-to-js/ts/app/hero.component.ts,
@@ -206,12 +211,13 @@ a#class-metadata
   When writing in _TypeScript_ or _ES6-with-decorators_, 
   provide configuration and metadata by adorning a class with one or more *decorators*. 
   For example, you supply metadata to a component class by preceding its definition with a
-  [`@Component`](../api/core/index/Component-decorator.html) decorator.
+  [`@Component`](../api/core/index/Component-decorator.html) decorator function whose
+  argument is an object literal with metadata properties.
 
   In _plain ES6_, you provide metadata by attaching an `annotations` array to the _class_.
-  Each item in the array corresponds to a decorator property value.
+  Each item in the array is a new instance of a metadata decorator created with a similar metadata object literal.
   
-  In _ES5_, you also provide an `annotations` array but you attach it to the _constructor function_ rather than a class.
+  In _ES5_, you also provide an `annotations` array but you attach it to the _constructor function_ rather than to a class.
 
   See these variations side-by-side:
 
@@ -233,11 +239,41 @@ a#class-metadata
   `)
 
 :marked
+  ***External Template file***
+
+  A large component template is often kept in a separate template file.
++makeExample('cb-ts-to-js/ts/app/title.component.html', '', 'app/title.component.html')(format='.')
+:marked
+  The component (`TitleComponent` in this case) then references the template file in its metadata `templateUrl` property:
++makeTabs(`
+  cb-ts-to-js/ts/app/hero-di-inject-additional.component.ts,
+  cb-ts-to-js/js-es6-decorators/app/hero-di-inject-additional.component.es6,
+  cb-ts-to-js/js-es6/app/hero-di-inject-additional.component.es6,
+  cb-ts-to-js/js/app/hero-di-inject-additional.component.js`,
+  'metadata, metadata, metadata, metadata',
+  `TypeScript,
+  ES6 JavaScript with decorators,
+  ES6 JavaScript,
+  ES5 JavaScript`)(format='.')
+
+:marked
+  Note that the _TypeScript_ and both _ES6_ file `templateUrl` properties identify the location of the template file _relative to the component module_.
+  All three metadata configurations specify the `moduleId` property 
+  so that Angular can calculate the proper module address.
+.l-sub-section
+  :marked
+    The `moduleId` may not be needed with certain tooling but it's safest to provide it anyway.
+:marked
+  The _ES5_ approach shown here does not support modules and therefore there is no way to calculate a _module-relative URL_.
+  The `templateUrl` for the _ES5_ code must specify the _path from the project root_ and 
+  omits the irrelevant `moduleId` property. 
+  
+
   ***Angular class API***
 
   This _ES5_ pattern of creating a constructor and annotating it with metadata is so common that Angular 
-  provides a convenience API to make it a little more compact and put the metadata first, 
-  as it would be if you wrote in _TypeScript_ or _ES6-with-decorators_.
+  provides a convenience API to make it a little more compact and locates the metadata above the constructor, 
+  as you would if you wrote in _TypeScript_ or _ES6-with-decorators_.
 
   Set a component variable to the result of an `ng.core.Component` function call.
   Pass the same metadata object to `ng.core.Component` as you did before.
@@ -278,14 +314,14 @@ code-example.
 :marked
   ### Interfaces
 
-  When defining classes that need to implement a certain method, it is common to use _TypeScript_
-  interfaces that enforce that the method signature is correct. 
-  Component lifecycle methods like `ngOnInit` are one example of this pattern.
-  `ngOnInit` is defined in the `OnInit` interface.
+  A _TypeScript_ interface helps ensure that a class implements the interface's members correctly.
+  We strongly recommend Angular interfaces where appropriate. 
+  For example, a component that implements the `ngOnInit` lifecycle hook method
+  should implement the `OnInit` interface.
 
-  _TypeScript_ interfaces are purely for developer convenience and are not used by Angular at runtime.
-  This means that in _ES5_/_ES6_ JavaScript code you don't need to substitute anything for interfaces.
-  Just implement the methods.
+  _TypeScript_ interfaces exist for developer convenience and are not used by Angular at runtime.
+  They have no physical manifestation in the generated JavaScript code.
+  Just implement the methods and ignore interfaces when translating code samples from _TypeScript_ to JavaScript.
 
 +makeTabs(`
     cb-ts-to-js/ts/app/hero-lifecycle.component.ts,
@@ -307,21 +343,19 @@ a#property-metadata
 
   ### Input and Output Decorators
 
-  In _TypeScript_ and _ES6_ with decorators, property decorators are often used to provide additional 
-  metadata for components and directives.
-  For [inputs and outputs](../guide/template-syntax.html#inputs-outputs), you use `@Input` and 
-  `@Output` property decorators. 
-  Specify input and output binding names if you want the public-facing names to differ
-  from the class property names.
+  In _TypeScript_ and _ES6-with-decorators_, you often add metadata to class _properties_ with _property decorators_.
+  For example, you apply [`@Input` and `@Output` property decorators](../guide/template-syntax.html#inputs-outputs) 
+  to public class properties that will be the target of data binding expressions in parent components.
 
-  There is no equivalent of a property decorator in _ES5_/_ES6_ JavaScript. 
-  Instead, you add comparable information to the `Component` (or `Directive`) metadata.
-  
-  In this example, you add `inputs` and `outputs` array attributes containing the input and
-  output property names. 
-  If you need a binding name that is different from the property itself, use the 
-  `propertyName: bindingName` syntax.  
+  There is no equivalent of a property decorator in _ES5_ or _plain ES6_. 
+  Fortunately, every property decorator has an equivalent representation in a class decorator metadata property.
+  A _TypeScript_ `@Input` property decorator can be represented by an item in the `Component` metadata's `inputs` array.
   
+  You already know how to add `Component` or `Directive` class metadata in _any_ JavaScript dialect so
+  there's nothing fundamentally new about adding another property. 
+  But note that what would have been _separate_ `@Input` and `@Output` property decorators for each class property are
+  combined in the metadata `inputs` and `outputs` _arrays_.
+
 +makeTabs(`
     cb-ts-to-js/ts/app/hero-io.component.ts,
     cb-ts-to-js/js-es6-decorators/app/hero-io.component.es6,
@@ -334,7 +368,16 @@ a#property-metadata
     ES6 JavaScript,
     ES5 JavaScript
   `)
-
+:marked
+  In the previous example, one of the public-facing binding names (`cancelMsg`) 
+  differs from the corresponding class property name (`notOkMsg`).
+  That's OK but you must tell Angular about it so that it can map an external binding of `cancelMsg`
+  to the component's `notOkMsg` property.
+  
+  In _TypeScript_ and _ES6-with-decorators_, 
+  you specify the special binding name in the argument to the property decorator.
+  In _ES5_ and _plain ES6_ code, convey this pairing with the `propertyName: bindingName` syntax in the class metadata.
+  
 .l-main-section
 :marked
   ## Dependency Injection
@@ -342,7 +385,7 @@ a#property-metadata
   ### Injection by Type
 
   Angular can often use _TypeScript_ type information to determine what needs to be injected.
-  _ES6_ with decorators can also make use of type information.
+  _ES6-with-decorators_ can also make use of type information.
 
   Since no type information is available in _ES5_/_ES6_ JavaScript, you must identify "injectables" in 
   some other way.