**Note:** *UI-Router is under active development. As such, while this library is well-tested, the API may change. Consider using it in production applications only if you're comfortable following a changelog and updating your usage accordingly.*
- or via **[Component](https://github.com/component/component)**: by running `$ component install angular-ui/ui-router` from your console
**(2)** Include `angular-ui-router.js` (or `angular-ui-router.min.js`) in your `index.html`, after including Angular itself (For Component users: ignore this step)
**(3)** Add `'ui.router'` to your main module's list of dependencies (For Component users: replace `'ui.router'` with `require('angular-ui-router')`)
When you're done, your setup should look similar to the following:
The majority of UI-Router's power is in its ability to nest states & views.
**(1)** First, follow the [setup](#get-started) instructions detailed above.
**(2)** Then, add a [`ui-view` directive](https://github.com/angular-ui/ui-router/wiki/Quick-Reference#ui-view) to the `<body />` of your app.
>
```html
<!-- index.html -->
<body>
<divui-view></div>
<!-- We'll also add some navigation: -->
<aui-sref="state1">State 1</a>
<aui-sref="state2">State 2</a>
</body>
```
**(3)** You'll notice we also added some links with [`ui-sref` directives](https://github.com/angular-ui/ui-router/wiki/Quick-Reference#ui-sref). In addition to managing state transitions, this directive auto-generates the `href` attribute of the `<a />` element it's attached to, if the corresponding state has a URL. Next we'll add some templates. These will plug into the `ui-view` within `index.html`. Notice that they have their own `ui-view` as well! That is the key to nesting states and views.
>
```html
<!-- partials/state1.html -->
<h1>State 1</h1>
<hr/>
<aui-sref="state1.list">Show List</a>
<divui-view></div>
```
```html
<!-- partials/state2.html -->
<h1>State 2</h1>
<hr/>
<aui-sref="state2.list">Show List</a>
<divui-view></div>
```
**(4)** Next, we'll add some child templates. *These* will get plugged into the `ui-view` of their parent state templates.
>
```html
<!-- partials/state1.list.html -->
<h3>List of State 1 Items</h3>
<ul>
<ling-repeat="item in items">{{ item }}</li>
</ul>
```
>
```html
<!-- partials/state2.list.html -->
<h3>List of State 2 Things</h3>
<ul>
<ling-repeat="thing in things">{{ thing }}</li>
</ul>
```
**(5)** Finally, we'll wire it all up with `$stateProvider`. Set up your states in the module config, as in the following:
