62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<div class="intro">

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<p>Loader can be used programatically as an offline dependency calculator.</p>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass</div>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<h2>Instantiating Loader</h2>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<p>Loader comes with the `YUI` seed file by default, so it's ready to be used immediately, so there is

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassno need to load any additional files.</p>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass```

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassvar Y = YUI();

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassvar loader = new Y.Loader();

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass```

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<h2>Resolving dependencies</h2>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<p>`Loader` comes with a `resolve` method that it uses internally to calculate dependencies and

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassbuild URL's for injecting scripts into the page.</p>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass```

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassvar Y = YUI();

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassvar loader = new Y.Loader({

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass require: [ 'node' ]

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass});

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass//Tell loader to calculate dependencies

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassloader.calculate();

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassvar out = loader.resolve();

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass```

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<p>In the above code, `out` will be an Object containing the keys, `js` and `css` that will contain

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassan array of URL's to load the modules needed to resolve `node`.</p>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<h2>Advanced Usage</h2>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass```

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass{{>loader-resolve}}

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass```

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<p>The above code will generate this URL for you:</p>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<div class="example code" id="resolve1">

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass</div>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<script>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass{{>loader-resolve}}

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassdocument.getElementById('resolve1').innerHTML = out.js[0];

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass</script>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<p>You can use any `Loader` configuration option here as well: `modules`, `groups`, `patterns`, etc.</p>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<h2>CLI use within Node.js</h2>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass<p>Here we use Loader to calculate dependencies from the command line and generate a combined

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassfile. This could be used in a build system to auto-generate a custom seed file with modules

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glassneeded for immediate access.</p>

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass```

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass{{>loader-resolve-node}}

62898daffb90e74ea7a9000bf3e0fdc9e570b7a2Dav Glass```