Ember.js is a JavaScript framework that does all of the heavy lifting that you'd normally have to do by hand. There are tasks that are common to every web app; Ember.js does those things for you, so you can focus on building killer features and UI.

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1. Ensure that Node.js and bower are installed.
2. Run git clone https://github.com/emberjs/ember.js.git && cd ember.js.
3. Run git config core.symlinks true to ensure that symlinks are enabled.
4. Run git reset --hard HEAD to reset to HEAD with symlinks.
5. Run npm install to ensure the required dependencies are installed.
6. Run bower install to ensure required web dependencies are installed.
7. Run npm run build to build Ember.js. The builds will be placed in the dist/ directory.

If you encounter a problem with downloading dependencies like:

npm ERR! registry error parsing json

consider upgrading npm with:

npm install -g npm@latest

You can find more information in Upgrading on *nix (OSX, Linux, etc.) npm wiki page.

See CONTRIBUTING.md

Pull requests should pass the Ember.js unit tests. Do the following to run these tests.

1. Follow the setup steps listed above under Building Ember.js.

2. To start the development server, run npm start.

3. To run all tests, visit http://localhost:4200/.

4. To test a specific package, visit http://localhost:4200/tests/index.html?package=PACKAGE_NAME. Replace PACKAGE_NAME with the name of the package you want to test. For example:

• Ember.js Runtime
• Ember.js Views
• Ember.js Handlebars

To test multiple packages, you can separate them with commas.

You can also pass jquery=VERSION in the test URL to test different versions of jQuery.

1. Install phantomjs from http://phantomjs.org.

2. Run npm test to run a basic test suite or run TEST_SUITE=all npm test to run a more comprehensive suite.

1. ember test --server
2. connect the browsers you want
3. if phantom didn't connect automatically, you can run ./bin/connect-phantom-to <optional-port>

To run a specific browser, you can use the --launch flag

• ember test --server --launch SL_Firefox_Current
• ember test --launch SL_Firefox_Current