<div class="intro">

<p>Loader can be used programatically as an offline dependency calculator.</p>

</div>

<h2>Instantiating Loader</h2>

<p>Loader comes with the `YUI` seed file by default, so it's ready to be used immediately, so there is

no need to load any additional files.</p>

```

var Y = YUI();

var loader = new Y.Loader();

```

<h2>Resolving dependencies</h2>

<p>`Loader` comes with a `resolve` method that it uses internally to calculate dependencies and

build URL's for injecting scripts into the page.</p>

```

var Y = YUI();

var loader = new Y.Loader({

require: [ 'node' ]

});

//Tell loader to calculate dependencies

loader.calculate();

var out = loader.resolve();

```

<p>In the above code, `out` will be an Object containing the keys, `js` and `css` that will contain

an array of URL's to load the modules needed to resolve `node`.</p>

<h2>Advanced Usage</h2>

```

{{>loader-resolve}}

```

<p>The above code will generate this URL for you:</p>

<div class="example code" id="resolve1">

</div>

<script>

{{>loader-resolve}}

document.getElementById('resolve1').innerHTML = out.js[0];

</script>

<p>You can use any `Loader` configuration option here as well: `modules`, `groups`, `patterns`, etc.</p>

<h2>CLI use within Node.js</h2>

<p>Here we use Loader to calculate dependencies from the command line and generate a combined

file. This could be used in a build system to auto-generate a custom seed file with modules

needed for immediate access.</p>

```

{{>loader-resolve-node}}

```