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Check synchronously if file/directory exists in Node.js
... await fs.promises.access("somefile");
// The check succeeded
} catch (error) {
// The check failed
}
Or with a callback:
fs.access("somefile", error => {
if (!error) {
// The check succeeded
} else {
// The check failed
}
});
Historical Answers
Here ar...
Error 'LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt' after
...try to use Visual Studio 2010 to compile C++ projects, I get the following error message:
26 Answers
...
Node: log in a file instead of the console
...s = fs.createWriteStream(dir + '/node.access.log', { flags: 'a' })
, error = fs.createWriteStream(dir + '/node.error.log', { flags: 'a' });
// redirect stdout / stderr
proc.stdout.pipe(access);
proc.stderr.pipe(error);
...
Cannot convert lambda expression to type 'string' because it is not a delegate type [duplicate]
... This has to be the stupidest thing ever. Giving you a totally misleading error message instead of clearly stating that you miss a reference. Someone cannot program at microsoft. Well, thanks for the fix
– Liquid Core
Oct 24 '16 at 10:19
...
Starting python debugger automatically on error
... suitable solution. If I run a script and I come across, let's say an IndexError, python prints the line, location and quick description of the error and exits. Is it possible to automatically start pdb when an error is encountered? I am not against having an extra import statement at the top of the...
Parser Error Message: Could not load type 'TestMvcApplication.MvcApplication'
I am getting the following error on one of our production servers. Not sure why it is working on the DEV server?
39 Answers...
Bash syntax error: unexpected end of file
...ns with semicolon
I.e. this innocent-looking snippet will cause the same error:
die () { test -n "$@" && echo "$@"; exit 1 }
To make the dumb parser happy:
die () { test -n "$@" && echo "$@"; exit 1; }
...
Python Unicode Encode Error
... while the XML file shows a ' , when I try to print it I get the following error:
9 Answers
...
How do you calculate log base 2 in Java for integers?
...w);
if (pow != log(x, base))
System.out.println(String.format("error at %d^%d", base, pow));
if(pow!=0 && (pow-1) != log(x-1, base))
System.out.println(String.format("error at %d^%d-1", base, pow));
}
public static void main(String[] args) {
for (int base = 2; ba...
Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0
...ails with something like:
ReBaseImage (msys-1.0.dll) failed with last error = 6
You will need to perform the following steps in order:
Copy the dll to another directory
Rebase the copy using the commands above
Replace the original dll with the copy.
If any issue run the commands as Admini...