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POAngularJS : File concatenation breaks module declaration order
 

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  1. POAngularJS : File concatenation breaks module declaration order
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    <p>I'm using grunt to concatenate my <code>.js</code> files for my Angular app.</p> <p>I've just gone through and tidied up the codebase to follow the conventions discussed <a href="https://github.com/yeoman/generator-angular/issues/109" rel="nofollow noreferrer">here</a>, specifically, grouping my code into small modules that represent features.</p> <p>However, I'm finding that the order of concatenation appears to break the app, if a module is consumed before it is declared.</p> <p>eg:</p> <pre><code>|-- src/ | |-- app/ | | |-- userProfile/ | | | | userProfile.js | | | |-- deposits/ | | | | |-- depositFormCtrl.js </code></pre> <p>Where:</p> <pre><code>// userProfile.js var userProfile = angular.module('userProfile',[]) // depositFormCtrl.js angular.module('userProfile') .controller('DepositFormCtrl', function($scope) {...}); </code></pre> <p>When grunt performs the concatenation, <code>depositFormCtrl.js</code> appears before <code>userProfile.js</code>. This causes the app to throw an error, complaining:</p> <blockquote> <p>Uncaught Error: No module: userProfile</p> </blockquote> <p>I see lots of talk about the possibilities of using RequireJS / AMD to manage the load order of the modules. However, often it's stated that this is overkill / not required, <a href="https://stackoverflow.com/a/16113733/59015">as Angular handles this for you</a>.</p> <p>E.g: Brian Ford of the Angular team <a href="https://groups.google.com/d/msg/angular/na9w48QISr4/0jO1b39IYnwJ" rel="nofollow noreferrer">mentioned</a>:</p> <blockquote> <p>My personal take is that RequireJS does too much; the only feature that AngularJS's DI system is really missing is the async loading. </p> </blockquote> <p>He's also stated <a href="http://briantford.com/blog/huuuuuge-angular-apps.html" rel="nofollow noreferrer">elsewhere</a> that he doesn't recommend RequireJS with Angular.</p> <p>I've also seen mentioned made to using <a href="http://code.angularjs.org/1.1.5/angular-loader.js" rel="nofollow noreferrer">angular-loader.js</a>, as shown on the <a href="https://github.com/angular/angular-seed/blob/master/app/index-async.html" rel="nofollow noreferrer">seed project</a>. However, as I understand it, (there's little official documentation) the loader aims to solve the problem of loading modules out of order, rather than them being referenced before used.</p> <p>Adding angular-loader.js to my project didn't resolve the issue.</p> <p>Is there a declaration I should be using that prevents the errors I'm having?</p> <p>What is the correct way to declare modules &amp; controllers, so that the order files are concatenated doesn't impact the code at runtime?</p>
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    1. COThis is exactly why I DO recommend using RequireJS with Angular. RequireJS let's you quite easily define the load order of all your scripts, and than, when deploying to production, you use r.js (the RequireJS optimiser), which can follow your load order definition file and concatenate the files exactly in order in which you instruct it to do. This is what I'm doing on my projects and it works perfectly.
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    2. COI don't know if this fixes your problem (it did mine). But I had to load app.js first (the file with the `var app` declared, then I could wildcard the rest of the files with `grunt-contrib-concat`
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