Changes to chapter 1 of the Dart guide
This commit is contained in:
parent
8e0e727f7d
commit
0fecfb8e98
|
@ -1,69 +1,59 @@
|
||||||
.l-main-section
|
.l-main-section
|
||||||
h2#section-install Install Angular
|
|
||||||
p There are four steps to create any Angular app:
|
|
||||||
ol
|
|
||||||
li Create an entry point HTML file where users will start
|
|
||||||
li Load the Angular library at the top of the file
|
|
||||||
li Make a root component for your application
|
|
||||||
li Bootstrap Angular
|
|
||||||
|
|
||||||
p.
|
p.
|
||||||
Dart makes dependencies available to the application through the <code>pubspec.yaml</code> file.
|
As long as you already
|
||||||
To use Angular2 in your app, include angular as a dependency. Here’s the minimal
|
<a href="https://www.dartlang.org/downloads/">have the Dart SDK</a>,
|
||||||
<code>pubspec.yaml</code> file for this sample:
|
getting started with Angular 2 is simple:
|
||||||
|
|
||||||
pre.prettyprint.lang-dart
|
ol
|
||||||
|
li Depend on the <b>angular2</b> pub package.
|
||||||
|
li Create a Dart file that defines (directly or indirectly) a
|
||||||
|
<b>root component</b> and <b>bootstraps</b> Angular.
|
||||||
|
li Create an HTML file that uses the root component and points to the Dart file
|
||||||
|
|
||||||
|
p.
|
||||||
|
You can use whichever editor or IDE you like,
|
||||||
|
or just use the command-line tools that the Dart SDK provides.
|
||||||
|
See <a href="http://www.dartlang.org/tools/">Dart Tools</a>
|
||||||
|
for more information.
|
||||||
|
|
||||||
|
|
||||||
|
h2#section-install Depend on angular2
|
||||||
|
|
||||||
|
p.
|
||||||
|
To use Angular2 in your app, include angular2 as a dependency in
|
||||||
|
your app's <b>pubspec.yaml</b> file. For example:
|
||||||
|
|
||||||
|
pre.prettyprint.lang-yaml
|
||||||
code.
|
code.
|
||||||
|
# pubspec.yaml
|
||||||
name: getting_started
|
name: getting_started
|
||||||
description: Dart version of Angular 2 example, Getting Started
|
description: Dart version of Angular 2 example, Getting Started
|
||||||
version: 0.0.1
|
version: 0.0.1
|
||||||
dependencies:
|
dependencies:
|
||||||
angular2: 2.0.0-alpha.20
|
angular2: 2.0.0-alpha.20
|
||||||
browser: any
|
browser: any
|
||||||
|
|
||||||
p.
|
p.
|
||||||
The Dart Editor automatically downloads the packages your app depends on, along with any packages that they, in
|
Run <b>pub get</b> to download the packages your app depends on.
|
||||||
turn, depend on. If this download fails or you like using the command line, you can explicitly install packages.
|
(<a href="https://www.dartlang.org/tools/">Dart-savvy editors and IDEs</a>
|
||||||
From Dart Editor, you can use <strong>Tools > Pub Get</strong>. From the command line (in the root directory of
|
typically run <code>pub get</code> for you.)
|
||||||
your app, assuming the Dart SDK is in your path), you can run <code>pub get</code>.
|
|
||||||
|
|
||||||
.l-main-section
|
|
||||||
h2#section-create-an-entry-point Create an entry point
|
|
||||||
p.
|
|
||||||
In the <code>web/</code> directory for your app, create an <code>index.html</code> file and add the Angular library
|
|
||||||
tags and a <code>main.dart</code> file where you'll build your first component.
|
|
||||||
|
|
||||||
p.
|
|
||||||
In the <code><body></code>, add an element called <code><my-app></code> that will be the root of your
|
|
||||||
application.
|
|
||||||
|
|
||||||
pre.prettyprint.lang-html
|
|
||||||
code.
|
|
||||||
//index.html
|
|
||||||
<!DOCTYPE html>
|
|
||||||
<html>
|
|
||||||
<head>
|
|
||||||
<link rel="stylesheet" href="style.css">
|
|
||||||
</head>
|
|
||||||
<body>
|
|
||||||
<my-app></my-app>
|
|
||||||
<script type="application/dart" src="main.dart"></script>
|
|
||||||
<script src="packages/browser/dart.js"></script>
|
|
||||||
</body>
|
|
||||||
</html>
|
|
||||||
|
|
||||||
|
|
||||||
.l-main-section
|
.l-main-section
|
||||||
h2#section-set-up-the-starting-component Set up the starting component
|
h2#section-set-up-the-starting-component Write the Dart code
|
||||||
|
|
||||||
p.
|
p.
|
||||||
In <code>main.dart</code>, create a class called <code>AppComponent</code>, configure it to bind to the
|
Next to your <code>pubspec.yaml</code> file,
|
||||||
<code><my-app></code> element in <code>index.html</code>, and call Angular's <code>bootstrap()</code> to kick
|
create a <code>web</code> subdirectory containing a Dart file
|
||||||
it all off like this:
|
(<code>main.dart</code>).
|
||||||
|
Edit <code>main.dart</code>, adding a component class (<b>AppComponent</b>),
|
||||||
|
configuring it to bind to the <code><my-app></code> element,
|
||||||
|
and creating a top-level <code>main()</code> function that calls
|
||||||
|
Angular's <code>bootstrap()</code> function.
|
||||||
|
|
||||||
pre.prettyprint.lang-dart
|
pre.prettyprint.lang-dart
|
||||||
code.
|
code.
|
||||||
//main.dart
|
// web/main.dart
|
||||||
import 'package:angular2/angular2.dart';
|
import 'package:angular2/angular2.dart';
|
||||||
import 'package:angular2/src/reflection/reflection.dart' show reflector;
|
import 'package:angular2/src/reflection/reflection.dart' show reflector;
|
||||||
import 'package:angular2/src/reflection/reflection_capabilities.dart' show ReflectionCapabilities;
|
import 'package:angular2/src/reflection/reflection_capabilities.dart' show ReflectionCapabilities;
|
||||||
|
@ -83,13 +73,59 @@
|
||||||
}
|
}
|
||||||
|
|
||||||
.l-main-section
|
.l-main-section
|
||||||
h2#section-run-it Run it!
|
h2#section-create-an-entry-point Create an HTML file
|
||||||
|
p.
|
||||||
|
In the <code>web/</code> directoryapp, create an HTML file (<code>index.html</code>).
|
||||||
|
Edit <code>index.html</code> to add a <code><my-app></code> element
|
||||||
|
and call <code>main.dart</code>.
|
||||||
|
|
||||||
|
pre.prettyprint.lang-html
|
||||||
|
code.
|
||||||
|
<!-- web/index.html -->
|
||||||
|
<!DOCTYPE html>
|
||||||
|
<html>
|
||||||
|
<head>
|
||||||
|
<link rel="stylesheet" href="style.css">
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<my-app></my-app>
|
||||||
|
<script type="application/dart" src="main.dart"></script>
|
||||||
|
<script src="packages/browser/dart.js"></script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
|
|
||||||
|
.l-main-section
|
||||||
|
h2#section-run-it Run the app!
|
||||||
|
|
||||||
p.
|
p.
|
||||||
Now run the app. In Dart Editor’s Files view, select <code>index.html</code>, right-click, and choose <strong>Run
|
Now run the app. How you do this depends on your tools.
|
||||||
in Dartium</strong>.
|
|
||||||
|
ul
|
||||||
|
li.
|
||||||
|
If you're using <b>Dart Editor</b>,
|
||||||
|
right-click <b>web/index.html</b>,
|
||||||
|
and choose <b>Open in Dartium</b>.
|
||||||
|
This starts a web server
|
||||||
|
and opens your app in Dartium,
|
||||||
|
an experimental version of the Chromium browser that contains the Dart VM.
|
||||||
|
|
||||||
|
li.
|
||||||
|
If you're using <b>WebStorm</b> or <b>IntelliJ IDEA</b>,
|
||||||
|
right-click <b>web/index.html</b>,
|
||||||
|
and choose <b>Run 'index.html'</b>.
|
||||||
|
|
||||||
|
li.
|
||||||
|
If you're using the command line and don't have Dartium,
|
||||||
|
serve the app using <code>pub serve</code>,
|
||||||
|
and then run it by visiting <b>http://localhost:8080</b> in a browser.
|
||||||
|
Generating the JavaScript takes a few seconds when you first visit the page,
|
||||||
|
and the generated JavaScript is currently large.
|
||||||
|
The generated JavaScript will be smaller once
|
||||||
|
Angular's transformer becomes available.
|
||||||
|
|
||||||
|
p.
|
||||||
|
You should see something like this:
|
||||||
|
|
||||||
You should see:
|
|
||||||
div(align='center')
|
div(align='center')
|
||||||
img(src='setup-example1.png')
|
img(src='setup-example1.png')
|
||||||
|
|
||||||
|
@ -98,21 +134,48 @@
|
||||||
|
|
||||||
p This basic Angular app contains the structure for any app you'll build.
|
p This basic Angular app contains the structure for any app you'll build.
|
||||||
|
|
||||||
p.
|
.l-sub-section
|
||||||
You can think of Angular apps as a tree of components. This root component we've been talking about acts as the top
|
h3 It's all a tree
|
||||||
level container for the rest of your application. You've named this one <code>AppComponent</code>, but there's
|
|
||||||
nothing special about the name and you can use whatever makes sense to you.
|
p.
|
||||||
|
You can think of an Angular app as a tree of components.
|
||||||
|
The root component acts as the top-level container for the rest of your application.
|
||||||
|
You've named this one <code>AppComponent</code>, but there's
|
||||||
|
nothing special about the name; you can use whatever makes sense to you.
|
||||||
|
|
||||||
|
p.
|
||||||
|
The root component's job is to give a location in the HTML file where
|
||||||
|
your application can
|
||||||
|
render through its element—in this case, <code><my-app></code>.
|
||||||
|
There's nothing special about the HTML filename or the element name;
|
||||||
|
you can pick whatever you like.
|
||||||
|
|
||||||
|
p.
|
||||||
|
The root component loads the initial template for the application,
|
||||||
|
which loads other components to perform
|
||||||
|
whatever functions your application needs—menu bars, views, forms, and so on.
|
||||||
|
We'll walk through examples of all of
|
||||||
|
these in the following pages.
|
||||||
|
|
||||||
|
.l-sub-section
|
||||||
|
h3 @Component and @View annotations
|
||||||
|
|
||||||
|
p.
|
||||||
|
A component annotation describes details about the component.
|
||||||
|
An annotation can be identified by its at-sign (<code>@</code>).
|
||||||
|
p.
|
||||||
|
The <code>@Component</code> annotation defines the HTML tag for
|
||||||
|
the component by specifying the component's CSS selector.
|
||||||
|
p.
|
||||||
|
The <code>@View</code> annotation defines the HTML that
|
||||||
|
represents the component.
|
||||||
|
The component you wrote uses an inline template,
|
||||||
|
but you can also have an external template.
|
||||||
|
To use an external template,
|
||||||
|
specify a <code>templateUrl</code> property and
|
||||||
|
give it the path to the HTML file.
|
||||||
|
|
||||||
|
|
||||||
p.
|
p.
|
||||||
The root component's job is to give a location in the <code>index.html</code> file where your application will
|
Exciting! Not excited yet?
|
||||||
render through it's element, in this case <code><my-app></code>. There is also nothing special about this
|
Let's move on to <a href="displaying-data.html">Displaying Data</a>.
|
||||||
element name and you can pick it as you like.
|
|
||||||
|
|
||||||
p.
|
|
||||||
The root component loads the initial template for the application that will load other components to perform
|
|
||||||
whatever functions your application needs - menu bars, views, forms, etc. We'll walk through examples of all of
|
|
||||||
these in the following pages.
|
|
||||||
|
|
||||||
p Exciting! Not excited yet? Let's move on to <a href="displaying-data.html">Displaying Data</a>.
|
|
||||||
|
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue