add angularjs practice

- ng-repeat, filter usage
- update study

Author: Epikem

javascript/angular/examples/practice/.gitignore

@@ -0,0 +1,7 @@
+logs/*
+!.gitkeep
+node_modules/
+app/lib/
+tmp
+.DS_Store
+.idea

javascript/angular/examples/practice/.jshintrc

@@ -0,0 +1,24 @@
+{
+  "strict": "global",
+  "globals": {
+    // AngularJS
+    "angular": false,
+
+    // AngularJS mocks
+    "module": false,
+    "inject": false,
+
+    // Jasmine
+    "jasmine": false,
+    "describe": false,
+    "beforeEach": false,
+    "afterEach": false,
+    "it": false,
+    "expect": false,
+
+    // Protractor
+    "browser": false,
+    "element": false,
+    "by": false
+  }
+}

javascript/angular/examples/practice/.travis.yml

@@ -0,0 +1,19 @@
+dist: trusty
+
+language: node_js
+node_js:
+  - 10
+
+addons:
+  chrome: stable
+
+cache:
+  directories:
+    - "$HOME/.npm"
+
+install:
+  - npm install
+
+script:
+  - npm run test-single-run -- --browsers ChromeHeadless
+  - (npm start > /dev/null &) && npm run protractor -- --capabilities.chromeOptions.args headless

javascript/angular/examples/practice/LICENSE

@@ -0,0 +1,22 @@
+The MIT License
+
+Copyright (c) 2010-2016 Google, Inc. http://angularjs.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+

javascript/angular/examples/practice/README.md

@@ -0,0 +1,297 @@
+# `angular-seed` — the seed for AngularJS apps
+
+This project is an application skeleton for a typical [AngularJS][angularjs] web app. You can use it
+to quickly bootstrap your angular webapp projects and dev environment for these projects.
+
+The seed contains a sample AngularJS application and is preconfigured to install the AngularJS
+framework and a bunch of development and testing tools for instant web development gratification.
+
+The seed app doesn't do much, just shows how to wire two controllers and views together.
+
+
+## Getting Started
+
+To get you started you can simply clone the `angular-seed` repository and install the dependencies:
+
+### Prerequisites
+
+You need git to clone the `angular-seed` repository. You can get git from [here][git].
+
+We also use a number of Node.js tools to initialize and test `angular-seed`. You must have Node.js
+and its package manager (npm) installed. You can get them from [here][node].
+
+### Clone `angular-seed`
+
+Clone the `angular-seed` repository using git:
+
+```
+git clone https://github.com/angular/angular-seed.git
+cd angular-seed
+```
+
+If you just want to start a new project without the `angular-seed` commit history then you can do:
+
+```
+git clone --depth=1 https://github.com/angular/angular-seed.git <your-project-name>
+```
+
+The `depth=1` tells git to only pull down one commit worth of historical data.
+
+### Install Dependencies
+
+We have two kinds of dependencies in this project: tools and AngularJS framework code. The tools
+help us manage and test the application.
+
+* We get the tools we depend upon and the AngularJS code via `npm`, the [Node package manager][npm].
+* In order to run the end-to-end tests, you will also need to have the
+  [Java Development Kit (JDK)][jdk] installed on your machine. Check out the section on
+  [end-to-end testing](#e2e-testing) for more info.
+
+We have preconfigured `npm` to automatically copy the downloaded AngularJS files to `app/lib` so we
+can simply do:
+
+```
+npm install
+```
+
+Behind the scenes this will also call `npm run copy-libs`, which copies the AngularJS files and
+other front end dependencies. After that, you should find out that you have two new directories in
+your project.
+
+* `node_modules` - contains the npm packages for the tools we need
+* `app/lib` - contains the AngularJS framework files and other front end dependencies
+
+*Note copying the AngularJS files from `node_modules` to `app/lib` makes it easier to serve the
+files by a web server.*
+
+### Run the Application
+
+We have preconfigured the project with a simple development web server. The simplest way to start
+this server is:
+
+```
+npm start
+```
+
+Now browse to the app at [`localhost:8000/index.html`][local-app-url].
+
+
+## Directory Layout
+
+```
+app/                  --> all of the source files for the application
+  app.css               --> default stylesheet
+  core/                 --> all app specific modules
+    version/              --> version related components
+      version.js                 --> version module declaration and basic "version" value service
+      version_test.js            --> "version" value service tests
+      version-directive.js       --> custom directive that returns the current app version
+      version-directive_test.js  --> version directive tests
+      interpolate-filter.js      --> custom interpolation filter
+      interpolate-filter_test.js --> interpolate filter tests
+  view1/                --> the view1 view template and logic
+    view1.html            --> the partial template
+    view1.js              --> the controller logic
+    view1_test.js         --> tests of the controller
+  view2/                --> the view2 view template and logic
+    view2.html            --> the partial template
+    view2.js              --> the controller logic
+    view2_test.js         --> tests of the controller
+  app.js                --> main application module
+  index.html            --> app layout file (the main html template file of the app)
+  index-async.html      --> just like index.html, but loads js files asynchronously
+e2e-tests/            --> end-to-end tests
+  protractor-conf.js    --> Protractor config file
+  scenarios.js          --> end-to-end scenarios to be run by Protractor
+karma.conf.js         --> config file for running unit tests with Karma
+package.json          --> Node.js specific metadata, including development tools dependencies
+package-lock.json     --> Npm specific metadata, including versions of installed development tools dependencies
+```
+
+
+## Testing
+
+There are two kinds of tests in the `angular-seed` application: Unit tests and end-to-end tests.
+
+### Running Unit Tests
+
+The `angular-seed` app comes preconfigured with unit tests. These are written in [Jasmine][jasmine],
+which we run with the [Karma][karma] test runner. We provide a Karma configuration file to run them.
+
+* The configuration is found at `karma.conf.js`.
+* The unit tests are found next to the code they are testing and have a `.spec.js` suffix (e.g.
+  `view1.spec.js`).
+
+The easiest way to run the unit tests is to use the supplied npm script:
+
+```
+npm test
+```
+
+This script will start the Karma test runner to execute the unit tests. Moreover, Karma will start
+watching the source and test files for changes and then re-run the tests whenever any of them
+changes.
+This is the recommended strategy; if your unit tests are being run every time you save a file then
+you receive instant feedback on any changes that break the expected code functionality.
+
+You can also ask Karma to do a single run of the tests and then exit. This is useful if you want to
+check that a particular version of the code is operating as expected. The project contains a
+predefined script to do this:
+
+```
+npm run test-single-run
+```
+
+
+<a name="e2e-testing"></a>
+### Running End-to-End Tests
+
+The `angular-seed` app comes with end-to-end tests, again written in [Jasmine][jasmine]. These tests
+are run with the [Protractor][protractor] End-to-End test runner. It uses native events and has
+special features for AngularJS applications.
+
+* The configuration is found at `e2e-tests/protractor-conf.js`.
+* The end-to-end tests are found in `e2e-tests/scenarios.js`.
+
+Protractor simulates interaction with our web app and verifies that the application responds
+correctly. Therefore, our web server needs to be serving up the application, so that Protractor can
+interact with it.
+
+**Before starting Protractor, open a separate terminal window and run:**
+
+```
+npm start
+```
+
+In addition, since Protractor is built upon WebDriver, we need to ensure that it is installed and
+up-to-date. The `angular-seed` project is configured to do this automatically before running the
+end-to-end tests, so you don't need to worry about it. If you want to manually update the WebDriver,
+you can run:
+
+```
+npm run update-webdriver
+```
+
+Once you have ensured that the development web server hosting our application is up and running, you
+can run the end-to-end tests using the supplied npm script:
+
+```
+npm run protractor
+```
+
+This script will execute the end-to-end tests against the application being hosted on the
+development server.
+
+**Note:**
+Under the hood, Protractor uses the [Selenium Standalone Server][selenium], which in turn requires
+the [Java Development Kit (JDK)][jdk] to be installed on your local machine. Check this by running
+`java -version` from the command line.
+
+If JDK is not already installed, you can download it [here][jdk-download].
+
+
+## Updating AngularJS and other dependencies
+
+Since the AngularJS framework library code and tools are acquired through package managers (e.g.
+npm) you can use these tools to easily update the dependencies. Simply run the preconfigured script:
+
+```
+npm run update-deps
+```
+
+This will call `npm update` and `npm run copy-libs`, which in turn will find and install the latest
+versions that match the version ranges specified in the `package.json` file.
+
+If you want to update a dependency to a version newer than what the specificed range would permit,
+you can change the version range in `package.json` and then run `npm run update-deps` as usual.
+
+
+## Loading AngularJS Asynchronously
+
+The `angular-seed` project supports loading the framework and application scripts asynchronously.
+The special `index-async.html` is designed to support this style of loading. For it to work you must
+inject a piece of AngularJS JavaScript into the HTML page. The project has a predefined script to help
+do this:
+
+```
+npm run update-index-async
+```
+
+This will copy the contents of the `angular-loader.js` library file into the `index-async.html`
+page. You can run this every time you update the version of AngularJS that you are using.
+
+
+## Serving the Application Files
+
+While AngularJS is client-side-only technology and it is possible to create AngularJS web apps that
+do not require a backend server at all, we recommend serving the project files using a local
+web server during development to avoid issues with security restrictions (sandbox) in browsers. The
+sandbox implementation varies between browsers, but quite often prevents things like cookies, XHR,
+etc to function properly when an HTML page is opened via the `file://` scheme instead of `http://`.
+
+### Running the App during Development
+
+The `angular-seed` project comes preconfigured with a local development web server. It is a Node.js
+tool called [http-server][http-server]. You can start this web server with `npm start`, but you may
+choose to install the tool globally:
+
+```
+sudo npm install -g http-server
+```
+
+Then you can start your own development web server to serve static files from any folder by running:
+
+```
+http-server -a localhost -p 8000
+```
+
+Alternatively, you can choose to configure your own web server, such as Apache or Nginx. Just
+configure your server to serve the files under the `app/` directory.
+
+### Running the App in Production
+
+This really depends on how complex your app is and the overall infrastructure of your system, but
+the general rule is that all you need in production are the files under the `app/` directory.
+Everything else should be omitted.
+
+AngularJS apps are really just a bunch of static HTML, CSS and JavaScript files that need to be
+hosted somewhere they can be accessed by browsers.
+
+If your AngularJS app is talking to the backend server via XHR or other means, you need to figure
+out what is the best way to host the static files to comply with the same origin policy if
+applicable. Usually this is done by hosting the files by the backend server or through
+reverse-proxying the backend server(s) and web server(s).
+
+
+## Continuous Integration
+
+### Travis CI
+
+[Travis CI][travis] is a continuous integration service, which can monitor GitHub for new commits to
+your repository and execute scripts such as building the app or running tests. The `angular-seed`
+project contains a Travis configuration file, `.travis.yml`, which will cause Travis to run your
+tests when you push to GitHub.
+
+You will need to enable the integration between Travis and GitHub. See the
+[Travis website][travis-docs] for instructions on how to do this.
+
+
+## Contact
+
+For more information on AngularJS please check out [angularjs.org][angularjs].
+
+
+[angularjs]: https://angularjs.org/
+[git]: https://git-scm.com/
+[http-server]: https://github.com/indexzero/http-server
+[jasmine]: https://jasmine.github.io/
+[jdk]: https://wikipedia.org/wiki/Java_Development_Kit
+[jdk-download]: http://www.oracle.com/technetwork/java/javase/downloads
+[karma]: https://karma-runner.github.io/
+[local-app-url]: http://localhost:8000/index.html
+[node]: https://nodejs.org/
+[npm]: https://www.npmjs.org/
+[protractor]: http://www.protractortest.org/
+[selenium]: http://docs.seleniumhq.org/
+[travis]: https://travis-ci.org/
+[travis-docs]: https://docs.travis-ci.com/user/getting-started