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Pastable version of Node.js: Calculating total filesize of 3 files

<pre class='prettyprint' language='javascript'>filesize_done = 0; path.exists(filename + &quot;.&quot; + 0, function(exists) { fs.stat(filename + &quot;.&quot; + 0, function(err, stat) { filesize_done += stat.size; path.exists(filename + &quot;.&quot; + 1, function(exists) { fs.stat(filename + &quot;.&quot; + 1, function(err, stat) { filesize_done += stat.size; path.exists(filename + &quot;.&quot; + 2, function(exists) { fs.stat(filename + &quot;.&quot; + 2, function(err, stat) { filesize_done += stat.size; console.log(filesize_done); }); }); }); }); }); });</pre> <a href="http://www.refactormycode.com/codes/1420-node-js-calculating-total-filesize-of-3-files" style="color:#fff" title="As seen on RefactorMyCode.com"><img alt="Small_logo" src="http://www.refactormycode.com/images/small_logo.gif" style="border:0" /></a>