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What is /dev/null 2>&1?
...standard error as we know whenever a file is opened, the operating system (from kernel) returns a non-negative integer called a file descriptor. The file descriptor for these files are 0, 1, and 2, respectively.
So 2>&1 simply says redirect standard error to standard output.
& means ...
Detect element content changes with jQuery
...tself tries to change the elements, but not when the elements gets changed from outside jQuery. They don't watch changes on the document. Check out this little plugin instead: stackoverflow.com/questions/3233991/jquery-watch-div/…
– Sebastián Grignoli
Jul ...
Let JSON object accept bytes or let urlopen output strings
With Python 3 I am requesting a json document from a URL.
12 Answers
12
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Difference between PCDATA and CDATA in DTD
...TA is prepended by a hash in the content model to distinguish this keyword from an element named PCDATA (which would be perfectly legal).
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Using sed to mass rename files
...l rename (prename):
rename s/0000/000/ F0000*
or on systems with rename from util-linux-ng, such as RHEL:
rename 0000 000 F0000*
That's a lot more understandable than the equivalent sed command.
But as for understanding the sed command, the sed manpage is helpful. If
you run man sed and searc...
Are PHP functions case sensitive?
...
I am quoting from this:
Note: Function names are
case-insensitive, though it is usually
good form to call functions as they
appear in their declaration.
So, its looks like user-defined functions are not case-sensitive, there w...
How to Test Facebook Connect Locally
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@Simon_Weaver where did you get this information from? is it documented somewhere?
– kolistivra
Dec 3 '18 at 16:22
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Open popup and refresh parent page on close popup
...ses, as the onunload event is triggered only after the user navigates away from the first page.
– AntonChanning
Nov 14 '16 at 15:05
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How to convert int[] to Integer[] in Java?
...ve copy of the array in the constructor (clone). And just return the value from Arrays.equals rather than have that peculiar if statement. toString would be nice.
– Tom Hawtin - tackline
May 19 '09 at 1:58
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Should a function have only one return statement?
...urn;
...
}
So yes, I think it's fine to have multiple "exit points" from a function/method.
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edited Mar 11 '15 at 20:40
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