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When would you use a WeakHashMap or a WeakReference?
... application which has to work
with user-supplied images, like the
web site design tool I work on.
Naturally you want to cache these
images, because loading them from disk
is very expensive and you want to
avoid the possibility of having two
copies of the (potentially gigantic)
image...
Explain which gitignore rule is ignoring my file
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Assign null to a SqlParameter
...
111
The accepted answer suggests making use of a cast. However, most of the SQL types have a spec...
vector::at vs. vector::operator[]
... single catch block can handle problems generated from any of myriad throw sites, even if scattered deep within function calls. So, it's not that at() is necessarily easier for a single use, but that sometimes it becomes easier - and less obfuscating of normal-case logic - when you have a lot of in...
Using smart pointers for class members
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
How do I render a partial of a different format in Rails?
...
Tim HainesTim Haines
1,43933 gold badges1111 silver badges1616 bronze badges
...
What does `someObject.new` do in Java?
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
How JavaScript closures are garbage collected
...());
if(len >= 500) {
clearInterval(interval);
}
}, 10);
Live site here.
I hoped to wind up with an array of 500 function() {}'s, using minimal memory.
Unfortunately, that was not the case. Each empty function holds on to an (forever unreachable, but not GC'ed) array of a million numb...
How do I split a string on a delimiter in Bash?
...
Community♦
111 silver badge
answered Mar 10 '11 at 9:00
palindrompalindrom
11.7k11 gold b...
How to find my Subversion server version number?
...
Community♦
111 silver badge
answered Oct 16 '08 at 15:58
elviejoelviejo
...