d6fa26d0adaec6c910115be34fe7a5a5f402c14fMark Andrews<div class="intro">

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt<p>Loader can be used programatically as an offline dependency calculator.</p>

32098293b78922a5fbd10906afa28624820d3756Tinderbox User</div>

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt

5347c0fcb04eaea19d9f39795646239f487c6207Tinderbox User<h2>Instantiating Loader</h2>

5347c0fcb04eaea19d9f39795646239f487c6207Tinderbox User

5347c0fcb04eaea19d9f39795646239f487c6207Tinderbox User<p>Loader comes with the `YUI` seed file by default, so it's ready to be used immediately, so there is

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Huntno need to load any additional files.</p>

d6fa26d0adaec6c910115be34fe7a5a5f402c14fMark Andrews

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt```

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Huntvar Y = YUI();

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Huntvar loader = new Y.Loader();

fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User```

14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt<h2>Resolving dependencies</h2>

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt<p>`Loader` comes with a `resolve` method that it uses internally to calculate dependencies and

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Huntbuild URL's for injecting scripts into the page.</p>

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt```

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Huntvar Y = YUI();

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Huntvar loader = new Y.Loader({

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt require: [ 'node' ]

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt});

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt//Tell loader to calculate dependencies

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Huntloader.calculate();

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Huntvar out = loader.resolve();

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt```

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt<p>In the above code, `out` will be an Object containing the keys, `js` and `css` that will contain

fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Useran array of URL's to load the modules needed to resolve `node`.</p>

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User<h2>Advanced Usage</h2>

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User```

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User{{>loader-resolve}}

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User```

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User<p>The above code will generate this URL for you:</p>

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User<div class="example code" id="resolve1">

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User</div>

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User<script>

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt{{>loader-resolve}}

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox Userdocument.getElementById('resolve1').innerHTML = out.js[0];

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User</script>

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User

b66b333f59cf51ef87f973084a5023acd9317fb2Evan Hunt<p>You can use any `Loader` configuration option here as well: `modules`, `groups`, `patterns`, etc.</p>

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User<h2>CLI use within Node.js</h2>

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User<p>Here we use Loader to calculate dependencies from the command line and generate a combined

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox Userfile. This could be used in a build system to auto-generate a custom seed file with modules

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox Userneeded for immediate access.</p>

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User```

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User{{>loader-resolve-node}}

7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User```

7e71f05d8643aca84914437c900cb716444507e4Tinderbox User