222 lines
10 KiB
Markdown
222 lines
10 KiB
Markdown
# Change Log
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The Angular documentation is a living document with continuous improvements.
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This log calls attention to recent significant changes.
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## Updated to Angular 4.0. Documentation for Angular 2.x can be found at [v2.angular.io](https://v2.angular.io).
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## All mention of moduleId removed. "Component relative paths" guide deleted (2017-03-13)
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We added a new SystemJS plugin (systemjs-angular-loader.js) to our recommended SystemJS configuration.
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This plugin dynamically converts "component-relative" paths in templateUrl and styleUrls to "absolute paths" for you.
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We strongly encourage you to only write component-relative paths.
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That is the only form of URL discussed in these docs. You no longer need to write @Component({ moduleId: module.id }), nor should you.
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## NEW: Downloadable examples for each guide (2017-02-28)
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Now you can download the sample code for any guide and run it locally.
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Look for the new download links next to the "live example" links.
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## Template Syntax/Structural Directives: refreshed (2017-02-06)
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The [_Template-Syntax_](guide/template-syntax) and [_Structural Directives_](guide/structural-directives)
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guides were significantly revised for clarity, accuracy, and current recommended practices.
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Discusses `<ng-container>`.
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Revised samples are more clear and cover all topics discussed.
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## NEW: Samples re-structured with `src/` folder (2017-02-02)
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All documentation samples have been realigned with the default folder structure of the Angular CLI.
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That's a step along the road to basing the sample in the Angular CLI.
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But it's also good in its own right.
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It helps clearly separate app code from setup and configuration files.
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All samples now have a `src/` folder at the project root.
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The former `app/` folder moves under `src/`.
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Read about moving your existing project to this structure in
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<a href="https://github.com/angular/quickstart#updating-to-a-newer-version-of-the-quickstart-repo" target="Migrating samples/quickstart app to the src folder">
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the QuickStart repo update instructions</a>.
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Notably:
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* `app/main.ts` moved to `src/main.ts`.
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* `app/` moved to `src/app/`.
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* `index.html`, `styles.css` and `tsconfig.json` moved inside `src/`.
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* `systemjs.config.js` now imports `main.js` instead of `app`.
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* Added `lite-server` configuration (`bs-config.json`) to serve `src/`.
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## NEW: Reactive Forms guide (2017-01-31)
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The new [**Reactive Forms**](guide/reactive-forms) guide explains how and why to build a "reactive form".
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"Reactive Forms" are the code-based counterpart to the declarative "Template Driven" forms approach
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introduced in the [Forms](guide/forms) guide.
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Check it out before you decide how to add forms to your app.
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Remember also that you can use both techniques in the same app,
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choosing the approach that best fits each scenario.
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## NEW: Deployment guide (2017-01-30)
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The new [Deployment](guide/deployment) guide describes techniques for putting your application on a server.
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It includes important advice on optimizing for production.
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## Hierarchical Dependency Injection: refreshed (2017-01-13)
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[Hierarchical Dependency Injection](guide/hierarchical-dependency-injection) guide is significantly revised.
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Closes issue #3086.
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Revised samples are clearer and cover all topics discussed.
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## Miscellaneous (2017-01-05)
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* [Setup](guide/setup) guide:
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added (optional) instructions on how to remove _non-essential_ files.
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* No longer consolidate RxJS operator imports in `rxjs-extensions` file; each file should import what it needs.
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* All samples prepend template/style URLs with `./` as a best practice.
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* [Style Guide](guide/styleguide): copy edits and revised rules.
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## Router: more detail (2016-12-21)
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Added more information to the [Router](guide/router) guide
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including sections named outlets, wildcard routes, and preload strategies.
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## HTTP: how to set default request headers (and other request options) (2016-12-14)
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Added section on how to set default request headers (and other request options) to
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HTTP guide.
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## Testing: added component test plunkers (2016-12-02)
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Added two plunkers that each test _one simple component_ so you can write a component test plunker of your own: <live-example name="setup" plnkr="quickstart-specs">one</live-example> for the QuickStart seed's `AppComponent` and <live-example name="testing" plnkr="banner-specs">another</live-example> for the Testing guide's `BannerComponent`.
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Linked to these plunkers in "Testing" and "Setup anatomy" guides.
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## Internationalization: pluralization and _select_ (2016-11-30)
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The [Internationalization (i18n)](guide/i18n) guide explains how to handle pluralization and
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translation of alternative texts with `select`.
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The sample demonstrates these features too.
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## Testing: karma file updates (2016-11-30)
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* `karma.config` + `karma-test-shim` can handle multiple spec source paths;
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see quickstart issue: [angular/quickstart#294](https://github.com/angular/quickstart/issues/294).
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* Displays Jasmine Runner output in the karma-launched browser.
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## QuickStart Rewrite (2016-11-18)
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The QuickStart is completely rewritten so that it actually is quick.
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It references a minimal "Hello Angular" app running in Plunker.
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The new [Setup](guide/setup) page tells you how to install a local development environment
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by downloading (or cloning) the QuickStart github repository.
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You are no longer asked to copy-and-paste code into setup files that were not explained anyway.
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## Sync with Angular v.2.2.0 (2016-11-14)
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Docs and code samples updated and tested with Angular v.2.2.0.
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## UPDATE: NgUpgrade Guide for the AOT friendly _upgrade/static_ module (2016-11-14)
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The updated [NgUpgrade Guide](guide/upgrade) guide covers the
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new AOT friendly `upgrade/static` module
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released in v.2.2.0, which is the recommended
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facility for migrating from AngularJS to Angular.
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The documentation for the version prior to v.2.2.0 has been removed.
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## ES6 described in "TypeScript to JavaScript" (2016-11-14)
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The updated TypeScript to JavaScript guide explains how to write apps in ES6/7
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by translating the common idioms in the TypeScript documentation examples
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(and elsewhere on the web) to ES6/7 and ES5.
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This was [removed in August 2017](https://github.com/angular/angular/pull/18694) but can still be
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viewed in the [v2 documentation](https://v2.angular.io/docs/ts/latest/cookbook/ts-to-js.html).
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## Sync with Angular v.2.1.1 (2016-10-21)
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Docs and code samples updated and tested with Angular v.2.1.1.
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## npm _@types_ packages replace _typings_ (2016-10-20)
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Documentation samples now get TypeScript type information for 3rd party libraries
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from npm `@types` packages rather than with the _typings_ tooling.
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The `typings.json` file is gone.
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The [AngularJS Upgrade](guide/upgrade) guide reflects this change.
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The `package.json` installs `@types/angular` and several `@types/angular-...`
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packages in support of upgrade; these are not needed for pure Angular development.
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## "Template Syntax" explains two-way data binding syntax (2016-10-20)
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Demonstrates how to two-way data bind to a custom Angular component and
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re-explains `[(ngModel)]` in terms of the basic `[()]` syntax.
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## BREAKING CHANGE: `in-memory-web-api` (v.0.1.11) delivered as esm umd (2016-10-19)
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This change supports ES6 developers and aligns better with typical Angular libraries.
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It does not affect the module's API but it does affect how you load and import it.
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See the <a href="https://github.com/angular/in-memory-web-api/blob/master/CHANGELOG.md#0113-2016-10-20">change note</a>
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in the `in-memory-web-api` repo.
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## "Router" _preload_ syntax and _:enter_/_:leave_ animations (2016-10-19)
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The router can lazily _preload_ modules _after_ the app starts and
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_before_ the user navigates to them for improved perceived performance.
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New `:enter` and `:leave` aliases make animation more natural.
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## Sync with Angular v.2.1.0 (2016-10-12)
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Docs and code samples updated and tested with Angular v.2.1.0.
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## NEW "Ahead of time (AOT) Compilation" guide (2016-10-11)
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The NEW [Ahead of time (AOT) Compilation](guide/aot-compiler) guide
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explains what AOT compilation is and why you'd want it.
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It demonstrates the basics with a QuickStart app
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followed by the more advanced considerations of compiling and bundling the Tour of Heroes.
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## Sync with Angular v.2.0.2 (2016-10-6)
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Docs and code samples updated and tested with Angular v.2.0.2.
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## "Routing and Navigation" guide with the _Router Module_ (2016-10-5)
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The [Routing and Navigation](guide/router) guide now locates route configuration
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in a _Routing Module_.
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The _Routing Module_ replaces the previous _routing object_ involving the `ModuleWithProviders`.
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All guided samples with routing use the _Routing Module_ and prose content has been updated,
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most conspicuously in the
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[NgModule](guide/ngmodules) guide and [NgModule FAQ](guide/ngmodule-faq) guide.
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## New "Internationalization" guide (2016-09-30)
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Added a new [Internationalization (i18n)](guide/i18n) guide that shows how
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to use Angular "i18n" facilities to translate template text into multiple languages.
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## "angular-in-memory-web-api" package rename (2016-09-27)
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Many samples use the `angular-in-memory-web-api` to simulate a remote server.
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This library is also useful to you during early development before you have a server to talk to.
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The package name was changed from "angular2-in-memory-web-api" which is still frozen-in-time on npm.
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The new "angular-in-memory-web-api" has new features.
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<a href="https://github.com/angular/in-memory-web-api/blob/master/README.md">Read about them on github</a>.
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## "Style Guide" with _NgModules_ (2016-09-27)
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[StyleGuide](guide/styleguide) explains recommended conventions for NgModules.
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Barrels now are far less useful and have been removed from the style guide;
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they remain valuable but are not a matter of Angular style.
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Also relaxed the rule that discouraged use of the `@Component.host` property.
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## _moduleId: module.id_ everywhere (2016-09-25)
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Sample components that get their templates or styles with `templateUrl` or `styleUrls`
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have been converted to _module-relative_ URLs.
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Added the `moduleId: module.id` property-and-value to their `@Component` metadata.
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This change is a requirement for compilation with AOT compiler when the app loads
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modules with SystemJS as the samples currently do.
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## "Lifecycle Hooks" guide simplified (2016-09-24)
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The [Lifecycle Hooks](guide/lifecycle-hooks) guide is shorter, simpler, and
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draws more attention to the order in which Angular calls the hooks.
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