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SQLAlchemy: Creating vs. Reusing a Session
... of expire_on_commit pretty much optional, as this flag can incur a lot of extra SQL for an operation that calls commit() in the middle of a series of operations. Not sure if this answers your question.
The next round is what you mention about threading. If your app is multithreaded, we recomme...
Turn off autosuggest for EditText?
...
android:inputType="textVisiblePassword"
works like a charm
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Getting distance between two points based on latitude/longitude
...nit.MILES)
>> 243.71201856934454 # in miles
# you can also use the string abbreviation for units:
haversine(lyon, paris, unit='mi')
>> 243.71201856934454 # in miles
haversine(lyon, paris, unit=Unit.NAUTICAL_MILES)
>> 211.78037755311516 # in nautical miles
They claim to have ...
google oauth2 redirect_uri with several parameters
...
state=THE_STATE_PARAMETERS
So for your case,do this:
/1. create a json string of your parameters ->
{ "a" : "b" , "c" : 1 }
/2. do a base64UrlEncode , to make it URL safe ->
stateString = base64UrlEncode('{ "a" : "b" , "c" : 1 }');
This is a PHP example of base64UrlEncoding & de...
Why do std::shared_ptr work
...ed rather than just a function pointer. But for this case there is no such extra data, it would be sufficient just to store a pointer to an instantiation of a template function, with a template parameter that captures the type through which the pointer must be deleted.
[*] logically in the sense th...
Performance difference for control structures 'for' and 'foreach' in C#
...date. I did a small test, just to see. Here is the code:
static void Main(string[] args)
{
List<int> intList = new List<int>();
for (int i = 0; i < 10000000; i++)
{
intList.Add(i);
}
DateTime timeStarted = DateTime.Now;
for (int i = 0; i < intList...
What makes a keychain item unique (in iOS)?
...ivate keys. That's a lot different to Apple's sample code that only stores string credentials (username/password). However, I have found out that when you set the kSecClass to kSecClassCertificate or kSecClassKey the Keychain checks also if the entry (the value) is already stored. This prevents from...
Running a cron every 30 seconds
...p;
# Execute the payload, some random duration up to the limit.
# Extra blank line if excess payload.
((delay = RANDOM % maxtime + 1))
((maxtime += 1))
echo "$(date) Sleeping for ${delay} seconds (max ${maxtime})."
[[ ${delay} -gt 30 ]] && echo
sleep ${delay}
...
[精华]VC++对话框程序打印及打印预览的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ew.h”
#include “MyFrame.h”
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE［］=__FILE__;
#define new DEBUG_NEW
#endif
//////////////////////////////////////////
IMPLEMENT_DYNCREATE(CMyPreviewView, CPreviewView)
CMyPreviewView::CMyPreviewView()
{
}
CMyPreviewView::~CMyPreview...
Add centered text to the middle of a -like line
... be specified in em units. To get hr width, use (.divider width minus # of chars) / 2 .
– Kelvin
Jan 31 '13 at 22:38
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