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    <blockquote> <p>When you install node.js where do you store your files so that the web browser can display your content? For example Apache have a www folder.</p> </blockquote> <p>Wherever you want. node.js doesn't serve static content, it runs JavaScript. You tell it which script to run when you start it.</p> <p>You could write some JavaScript that serves static content, but where you would keep it depends on the code you wrote.</p> <blockquote> <p>Does node.js replace client side javascript?</p> </blockquote> <p>Only in so far as any server side programming replaces client side JavaScript. </p> <p>One advantage of using JS on the server side is that you can reuse libraries on both the client and the server. See <a href="http://developer.yahoo.com/cocktails/mojito/" rel="nofollow">Mojito</a> for a framework that claims to focus on this (I haven't had time to try it myself yet).</p> <blockquote> <p>For example if I wanted to put data from the server into this div element <code>&lt;div id="content"&gt;&lt;/div&gt;</code> In PHP you could do something like this: <code>&lt;div id="content"&gt;&lt;?php echo $content; ?&gt;&lt;/div&gt;</code></p> </blockquote> <p>PHP is a template language with an embedded programming language. JavaScript is a programming language. Typically you would use a template language (e.g. <a href="http://mustache.github.com/" rel="nofollow">moustache</a>) from your JS.</p> <blockquote> <p>Would you ever call node.js from client side? For example: An Ajax request to node.js to get data.</p> </blockquote> <p>Yes, if you want to. Just like any other server side programming environment. (Assuming you are using node to run an HTTP server).</p>
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    1. COThanks for the answer. I see examples that involved the server pushing data to the browser. Does that mean that js on the client needs to listen to requests from the server?
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    2. COGetting data over HTTP works the same way as usual. It doesn't matter what language is running the server. (So maybe, it depends on what you mean by 'push').
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