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Why does C# have break if it's not optional? [duplicate]
...om the horse's mouth (MSDN) Why is the C# switch statement designed to not allow fall-through, but still require a break?.
Quoting the salient bits, this is why they don't allow fall-through:
This implicit fall-through behavior is often used to reduce the amount of code needed and often isn't an is...
How can I check if a method is static using reflection?
...return Collections.unmodifiableList(methods);
}
Note: This method is actually dangerous from a security standpoint. Class.getMethods "bypass[es] SecurityManager checks depending on the immediate caller's class loader" (see section 6 of the Java secure coding guidelines).
Disclaimer: Not tested or...
CSS: Setting width/height as Percentage minus pixels
...n use calc:
height: calc(100% - 18px);
It's worth it to note that not all browsers currently support the standard CSS3 calc() function, so implementing the browser specific versions of the function may be required like the following:
/* Firefox */
height: -moz-calc(100% - 18px);
/* WebKit */
h...
What's the difference between lapply and do.call?
I'm learning R recently and confused by two function: lapply and do.call . It seems that they're just similar to map function in Lisp. But why are there two functions with such a different name? Why doesn't R just use a function called map ?
...
pyplot scatter plot marker size
...This can be a somewhat confusing way of defining the size but you are basically specifying the area of the marker. This means, to double the width (or height) of the marker you need to increase s by a factor of 4. [because A = WH => (2W)(2H)=4A]
There is a reason, however, that the size of mark...
How to check for file lock? [duplicate]
...ld become locked the very next second (read: short timespan).
Why specifically do you need to know if the file is locked anyway? Knowing that might give us some other way of giving you good advice.
If your code would look like this:
if not locked then
open and update file
Then between the t...
How can I increment a char?
...and C. How can I increment a char? In Java or C, chars and ints are practically interchangeable, and in certain loops, it's very useful to me to be able to do increment chars, and index arrays by chars.
...
How to recognize USB devices in Virtualbox running on a Linux host? [closed]
...and log in again
Attach to your PC the USB devices you want to be automatically mounted in the VM (virtual machine).
Open Virtualbox
Select your VM and go to "Machine" -> "Settings" -> "USB".
Check "Enable USB Controller"; click on the icon with the USB plug and the plus, and
click on the devi...
Remove an Existing File from a Git Repo
...
Just to give the full answer all at once:
from klemens: You need to add the file to your .gitignore file somewhere above the undesired file in the repo. i.e.
$ cd
$ cat >> .gitignore
development.log
C-d
from m. narebski: You then need to remove...
How to detect a textbox's content has changed
...
The only downfall of 'input' is that it is not compatible with IE < 9.
– Catfish
Mar 21 '13 at 20:02
...