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node.js execute system command synchronously
...024),
result = "",
fp = lib.popen(cmd, 'r');
if (!fp) throw new Error('execSync error: '+cmd);
while(lib.fgets(buffer, 1024, fp)) {
result += buffer.readCString();
};
lib.pclose(fp);
return result;
}
console.log(execSync('echo $HOME'));
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How do I restart nginx only after the configuration test was successful on Ubuntu?
... an Ubuntu server, the service crashes when a nginx configuration file has errors. On a multi-site server this puts down all the sites, even the ones without configuration errors.
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How can I catch a “catchable fatal error” on PHP type hinting?
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Update: This is not a catchable fatal error anymore in php 7. Instead an "exception" is thrown. An "exception" (in scare quotes) that is not derived from Exception but Error; it's still a Throwable and can be handled with a normal try-catch block. see https://wik...
Multiple ModelAdmins/views for same model in Django admin
...need to hack around things for just 2 lines that checks that and throws an error :s. Great answer still!
– Hassek
Nov 4 '11 at 17:20
1
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Forward declaration of a typedef in C++
...arkStorer, at least the compiler will catch any difference and generate an error. I verified this with Visual C++.
– Alan
Mar 10 '17 at 23:22
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How to checkout in Git by date?
... the command line and why do you say it's not working? Are you getting an error message?
– Andy
Dec 15 '11 at 13:32
8
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System.MissingMethodException: Method not found?
What once was working in my asp.net webforms app now throws this error:
34 Answers
34
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Python: print a generator expression?
...e(10)
Now, you can't stick that on a line by itself, you'll get a syntax error. But you can put parenthesis around it.
>>> (x*x for x in range(10))
<generator object <genexpr> at 0xb7485464>
This is sometimes called a generator comprehension, although I think the official n...
How to check if a column exists in a SQL Server table?
I need to add a specific column if it does not exist. I have something like the following, but it always returns false:
31 ...
Is there a way to override class variables in Java?
The function doIt will print "dad". Is there a way to make it print "son"?
17 Answers
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