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What's the best way to send a signal to all members of a process group?
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Better look at stackoverflow.com/questions/392022/… its by far a more elegant solution and if you need to list the pids of the children then use: ps -o pid --no-headers --ppid $PARENT_PID
– Szymon Jeż
Sep 15 '11 at 11:19
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What's the difference between findAndModify and update in MongoDB?
I'm a little bit confused by the findAndModify method in MongoDB. What's the advantage of it over the update method? For me, it seems that it just returns the item first and then updates it. But why do I need to return the item first? I read the MongoDB: the definitive guide and it says that i...
Foreign Key to multiple tables
...pends on your needs.
You could simply create two columns in Ticket, OwnedByUserId and OwnedByGroupId, and have nullable Foreign Keys to each table.
You could create M:M reference tables enabling both ticket:user and ticket:group relationships. Perhaps in future you will want to allow a single tick...
Lock Android phone application to Portrait mode
...uman-readable. To do so, the code and the previous paragraph must be split by at least two linebreaks, and every line in the code block must be indented with at least 4 spaces. Please try this out by editing your answer, and you will see by yourself how it makes your answer look much better.
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Doing something before program exit
... the docs: Note The exit function is not called when the program is killed by a signal, when a Python fatal internal error is detected, or when os._exit() is called.
– Katriel
Oct 3 '10 at 15:12
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How to use subprocess popen Python
Since os.popen is being replaced by subprocess.popen, I was wondering how would I convert
3 Answers
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Should all jquery events be bound to $(document)?
...he input control, you cannot do that with delegated event handling because by the time the event bubbles up to the delegated handler, it has already been processed by the input control and it's too late to influence that behavior.
Here are times when event delegation is required or advantageous:
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Duplicate headers received from server
... Why .Replace(";", "").Replace(",", "") when already replacing by RegEx? Add ;, to your RegEx pattern: string invalidReStr = string.Format(@"[{0};,]+", invalidChars); string replace = Regex.Replace(name, invalidReStr, "_");
– SBF
Oct 23 '19 at 14:05...
Shorten string without cutting words in JavaScript
...niorHoward already stated the fix for this (maxLength + 1), but I fixed it by simply adding this line up top: var yourString += " ";
– tylerl
Aug 14 '14 at 19:24
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Unlink of file Failed. Should I try again?
...ile. The file may not be actually open in eclipse but may have been opened by a process run by eclipse.
In this event, try closing the file in any applications that might have used it. If that doesn't work, completely exit any applications which may have opened the file.
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