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Never seen before C++ for loop
...g a comma has the value of the last subexpression on the right. This comes from C and can be used in any expression, not only in a for loop.
– Giorgio
Aug 1 '12 at 8:04
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What is the difference between “pom” type dependency with scope “import” and without “import”?
Starting from Maven 2.0.9 there is possibility to include
3 Answers
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How to copy directories in OS X 10.7.3?
Hi I'm trying to copy my rails_projects directory from haseebjaved/Desktop/rails_projects to my home directory, which is haseebjaved.
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Why is there no xrange function in Python3?
...e iteration.
And as for "consumes much more resources than Python 2.6+", from my tests, it looks like a 3.x range is exactly the same size as a 2.x xrange—and, even if it were 10x as big, building the unnecessary list is still about 10000000x more of a problem than anything the range iteration c...
Designing function f(f(n)) == -n
...³¹) is actually the easier case, as we showed these two are disconnected from the rest. The other case we need to consider is that f(0)=0, but f(x)=-2³¹ for some x≠0, x≠-2³¹. In that case, f(-2³¹)=f(f(x))=-x (note -x can't be -2³¹, because no such x exists). Further let f(-x)=y. Then f...
How to use WeakReference in Java and Android development?
...ence to an object, but you don't want that reference to protect the object from the garbage collector. A classic example is a cache that you want to be garbage collected when memory usage gets too high (often implemented with WeakHashMap).
Be sure to check out SoftReference and PhantomReference as...
Generate a random date between two other dates
..., e.g. milliseconds, seconds, hours, days, whatever), subtract the earlier from the later, multiply your random number (assuming it is distributed in the range [0, 1]) with that difference, and add again to the earlier one. Convert the timestamp back to date string and you have a random time in tha...
Backbone.js: get current route
...wing line returns the current fragment:
Backbone.history.getFragment();
From the Backbone.js documentation:
"
[...]
History serves as a global router (per frame) to handle hashchange events or pushState, match the appropriate route, and trigger callbacks. You shouldn't ever have to create one of...
Asynchronous shell commands
... script in the background:
$ myscript &
Note that this is different from putting the & inside your script, which probably won't do what you want.
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What character encoding should I use for a HTTP header?
... in field
content (obs-text) as opaque data.
Previously, RFC 2616 from 1999 defined this:
Words of *TEXT MAY contain characters from character sets other than ISO-
8859-1 [22] only when encoded according to the rules of RFC 2047 [14].
and RFC 2047 is the MIME encoding, so it'd ...