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What's the most efficient way to test two integer ranges for overlap?
... is in both ranges, i.e.
x1 <= C <= x2
and
y1 <= C <= y2
Now, if we are allowed to assume that the ranges are well-formed (so that x1 <= x2 and y1 <= y2) then it is sufficient to test
x1 <= y2 && y1 <= x2
...
What is JSON and why would I use it?
...ipt object you must first parse it, var x = JSON.parse('{"x":"y"}');, x is now an object but this is not JSON anymore.
See Javascript object Vs JSON
When working with JSON and JavaScript, you may be tempted to use the eval function to evaluate the result returned in the callback, but this is not...
Set icon for Android application
...
It's simple.
Now simply go to menu File → New → Image Asset. This will open a new dialogue and then make sure Launcher Icons is selected (Which it is by default) and then browse to the directory of your icon (it doesn't have to be in ...
Linux equivalent of the Mac OS X “open” command [closed]
...
gnome-open is now deprecated, and besides it was already used internally by xdg-open if the user was on Gnome (now it uses gvfs-open)
– MestreLion
Sep 11 '12 at 21:38
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Altering a column to be nullable
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Although I don't know what RDBMS you are using, you probably need to give the whole column specification, not just say that you now want it to be nullable. For example, if it's currently INT NOT NULL, you should issue ALTER TABLE Merchant_Pend...
How to get a list of all valid IP addresses in a local network? [closed]
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Per the man page "In newer releases of nmap, -sP is known as -sn". If the wildcard is not working, you can try something like nmap -sn 192.168.1.0/24 or nmap -sn 192.168.1.100-199
– Stickley
Aug 10 '16 at 19:19
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Partly cherry-picking a commit with Git
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I know I'm answering an old question, but it looks like there's a new way to do this with interactively checking out:
git checkout -p bc66559
Credit to Can I interactively pick hunks from another git commit?
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ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
...ed out that line, saved the file, and then ran service mysql restart. And now it works!
– Ryan
Jan 20 '14 at 17:59
In...
What are type lambdas in Scala and what are their benefits?
... point[A](a: A): M[A]
def bind[A, B](m: M[A])(f: A => M[B]): M[B]
}
Now, Either is a type constructor of two arguments, but to implement Monad, you need to give it a type constructor of one argument. The solution to this is to use a type lambda:
class EitherMonad[A] extends Monad[({type λ[...
Can I install/update WordPress plugins without providing FTP access?
...you to use the 'direct' method of installing plugins, themes, or updates.
Now, if for some reason you do not want to rely on the automatic check for which filesystem method to use, you can define a constant, 'FS_METHOD' in your wp-config.php file, that is either 'direct', 'ssh', 'ftpext' or 'ftpsoc...