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Fastest Way to Find Distance Between Two Lat/Long Points
...e much faster because you have drastically limited the number of points to test to the points within the box.
I call this technique "Thinking inside the box" :)
EDIT: Can this be put into one SQL statement?
I have no idea what mySql or Php is capable of, sorry.
I don't know where the best place i...
HTTP vs HTTPS performance
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December 2014 Update
You can easily test the difference between HTTP and HTTPS performance in your own browser using the HTTP vs HTTPS Test website by AnthumChris: “This page measures its load time over unsecure HTTP and encrypted HTTPS connections. Both page...
Convert boolean result into number/integer
...and guarantee the input, go urary, otherwise methinks the ternary + truthy test is best.
– gdibble
Jun 13 '17 at 18:31
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Is there any difference between “!=” and “” in Oracle Sql?
...iscussed previously here. Despite the bounty, nobody was able to create a test case demonstrating a noticeable difference in performance. But my offer still stands - I'll give you a 500 point bounty if you can create a test case showing that != is faster than other not-equals operators.
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How do browser cookie domains work?
...fc is a pretty accurate reflection of how major browsers behave. my recent tests on browsers confirmed that. although, they may differ on corner cases involving public suffixes.
– ZhongYu
Jul 9 '15 at 14:07
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How to convert std::string to lower case?
...:locale, std::tolower
int main ()
{
std::locale loc;
std::string str="Test String.\n";
for(auto elem : str)
std::cout << std::tolower(elem,loc);
}
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Run a JAR file from the command line and specify classpath
... specify a class path like this:
java -cp <jar_name.jar:libs/*> com.test.App
jar_name.jar is the full name of the JAR you want to execute
libs/* is a path to your dependency JARs
com.test.App is the fully qualified name of the class from the JAR that has the main(String[]) method
The jar...
How to check Django version
...d 2.7. Now I have installed Django. I could run the sample application for testing Django succesfuly. But how do I make sure whether Django uses the 2.6 or 2.7 version and what version of modules Django uses?
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Uninstall all installed gems, in OSX?
...a sane list of default gems which for me is: "gem install bundler json minitest rake rdoc"
– Wil Moore III
May 2 '12 at 8:33
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VC DDE（Dynamic Data Exchange）与EXCEL连接 - C/C++ - 清泛网 - 专注C/C++及内核技术
...Inst, HCONV hConv, char* szItem, char* sDesc)
{
HSZ hszItem = DdeCreateStringHandle(idInst, szItem, 0);
HDDEDATA hData = DdeClientTransaction(NULL,0,hConv,hszItem,CF_TEXT,
XTYP_REQUEST,5000 , NULL);
if (hData==NULL)
{
printf("Request fa...