javascript - NodeJS - stat doesn't always run -

here's code:

console.log("path 1: " + fullname); fs.stat(fullname, function(err, stats) {  console.log("path 2: " + fullname); }, function(err) { // don't know if part   console.log("an error occurred: " + err); // saw in different answer }); 

the code doesn't run files. in, logs show path 1 file not path 2 file, , none of "an error occurred". thinking maybe files have invalid character, because have equal signs in them. this:

   ...file.device_type=mobile.jsx 

even if that's case, why no error or anything? , if so, how can stat these files?

you aren't logging or checking error. fs.stat() accepts 2 parameters only, filename , callback function. passing 3 parameters, filename , 2 separate callbacks. second callback wrong. then, in first callback, need check err variable see if error occurred.

this correct usage:

fs.stat(fullname, function(err, stats) {     if (err) {         console.log("error in fs.stat(): ", err);     } else {         console.log("got stats: ", stats);     } }); 

if you're using proper form , still don't see either message in console, i'd suggest putting exception handler around see if else going on:

try {     console.log("about call fs.stat()");     fs.stat(fullname, function(err, stats) {         if (err) {             console.log("error in fs.stat(): ", err);         } else {             console.log("got stats: ", stats);         }     });  } catch(e) {     console.log("fs.stat() exception: ", e);  } 

in looking @ source code fs.stat(), there several ways throw synchronous exception, particularly if detects invalid arguments passed it. usual, node.js documentation not describe behavior, can see in code. code fs.stat():

fs.stat = function(path, callback) {   callback = makestatscallback(callback);   if (handleerror((path = getpathfromurl(path)), callback))     return;   if (!nullcheck(path, callback)) return;   var req = new fsreqwrap();   req.oncomplete = callback;   binding.stat(pathmodule._makelong(path), req); }; 

both makestatscallback() , handleerror() can throw exception (when @ implementations in same file).

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i not know got notion of passing 2 callbacks fs.stat(). documented here, not accept 2 callback functions. looks remotely promisified version of fs library every async operation returns promise , can pass 2 callbacks fs.statpromise.then(fn1, fn2), have no idea if that's saw or not.