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How to split a string and assign it to variables
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@PumpkinSeed just tried it out, and I get this back from err, unfortunately: too many colons in address 2001:0db8:85a3:0000:0000:8a2e:0370:7334 :(
– J.M. Janzen
Feb 25 '17 at 16:11
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Difference between Static and final?
...od can call only other static methods and can not call a non-static method from it unless it has/creates an instance of the class.
A static method can be accessed directly by the class name and doesn’t need any object.
Syntax: Class.methodName()
A static method cannot refer to this or super ke...
What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
...se" error than a RuntimeError, because you have to do more work to recover from it.
So which you want depends on how your project does its error handling. For instance, in our daemons, the main loop has a blank rescue which will catch RuntimeErrors, report them, and then continue. But in one or two...
What's the state of the art in email validation for Rails?
...ted:
/\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/
That was adapted from http://www.regular-expressions.info/email.html -- which you should read if you really want to know all the tradeoffs. If you want a more correct and much more complicated fully RFC822-compliant regex, that's on that pag...
In C, do braces act as a stack frame?
...fiers declared within the braces are only accessible within the braces, so from a programmer's point of view, it is like they are pushed onto the stack as they are declared and then popped when the scope is exited. However, compilers don't have to generate code that pushes/pops anything on entry/ex...
How can I generate UUID in C#
... And you need formatting of the GUID as a string that is different from the default, you can use the ToString(string format) overload that accepts one of several format specifiers.
– Michiel van Oosterhout
Jun 3 '13 at 15:44
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GCC dump preprocessor defines
Is there a way for gcc/g++ to dump its preprocessor defines from the command line?
I mean things like __GNUC__ , __STDC__ , and so on.
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Difference between == and ===
...er two object references both refer to the same object instance.
Excerpt From: Apple Inc. “The Swift Programming Language.” iBooks. https://itun.es/us/jEUH0.l
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How to override !important?
...y hack, etc.. In my case I have to deal with templates that pull their CSS from a database somewhere. I grep the DB dump and it shows me it comes from a 1MB json blob. Not very useful to me in finding where to change it, forcing me to add CSS to a code file, the way it should be done, except with th...
Best way to find the intersection of multiple sets?
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From Python version 2.6 on you can use multiple arguments to set.intersection(), like
u = set.intersection(s1, s2, s3)
If the sets are in a list, this translates to:
u = set.intersection(*setlist)
where *a_list is list ...