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copied!<p>If you are trying to remove lines of Javascript using the h5bp default Google Closure Compiler I suggest looking at @define JSDoc Tag</p> <pre><code>/** @define {boolean} */ var DEBUG = true; </code></pre> <p>Then, in your project.properties file look for: <code># Closure Compiler Options</code> and set: <code>tool.closure.opts = --define DEBUG=false</code></p> <p>Finally, wrap any code you want ignored, in production, in a conditional: </p> <pre><code>if (!DEBUG) { console.log("Starting test"); console.log("Test 2"); } </code></pre> <p>The @define JSDoc Tag will help with your second question also.</p> <pre><code>/** * @define {string} */ var AJAX_URL = 'http://localhost/'; console.log(AJAX_URL); </code></pre> <p>with the compilations options: <code>--compilation_level ADVANCED_OPTIMIZATIONS --define AJAX_URL=\'http://example.com/\'</code> (Note: you made need to fiddle with the quote escaping, depending on your platform) the resulting code is:</p> <pre><code>console.log("http://example.com/"); </code></pre> <p>There are many ways to go about this of course, see:</p> <ul> <li><a href="http://paulirish.com/2009/log-a-lightweight-wrapper-for-consolelog/" rel="nofollow">http://paulirish.com/2009/log-a-lightweight-wrapper-for-consolelog/</a> </li> <li><a href="http://dailyjs.com/2012/02/02/console/" rel="nofollow">http://dailyjs.com/2012/02/02/console/</a></li> <li><a href="https://developers.google.com/closure/compiler/docs/js-for-compiler?hl=en" rel="nofollow">https://developers.google.com/closure/compiler/docs/js-for-compiler?hl=en</a></li> </ul>

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