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Best Practices: Salting & peppering passwords?
...store cryptographic secrets. Not having a mechanism to rotate keys (periodically, and after a breach) is a huge security vulnerability.
And your current pepper approach would require every user to either have their password completely invalidated by a rotation, or wait until their next login to rot...
Difference between System.DateTime.Now and System.DateTime.Today
...has DateTimeKind.Local assigned to its Kind property. It is equivalent to calling any of the following:
DateTime.UtcNow.ToLocalTime()
DateTimeOffset.UtcNow.LocalDateTime
DateTimeOffset.Now.LocalDateTime
TimeZoneInfo.ConvertTime(DateTime.UtcNow, TimeZoneInfo.Local)
TimeZoneInfo.ConvertTimeFromUtc...
Renaming xcode 4 project and the actual folder
...inder. This will break the project initially because Xcode doesn't automatically detect when the real folders that the virtual (yellow) project folders point to are changed, so all the files inside that folder will turn red in Xcode. Don't worry about that, we'll fix it in step 3.
In Xcode, click on...
tinyxml XML解析库下载（tinyxml2.h 和 tinyxml2.cpp） - 源码下载 - 清泛...
...as a small initial memory pool, so that low or no usage will not
cause a call to new/delete
*/
template <class T, int INIT>
class DynArray
{
public:
DynArray< T, INIT >() {
_mem = _pool;
_allocated = INIT;
_size = 0;
}
~DynArray() {
if ( _m...
Replacement for Google Code Search? [closed]
...
searchcode
krugle
I think Open Hub Code Search (previously called ohloh and koders) was a good alternative, but it was closed recently. [Discontinued]
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Android: How to handle right to left swipe gestures
...
but "onDown" is never called. as a consequence, my e1 is always null and I can do nothing about it.
– mangusta
May 30 '14 at 7:04
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What's the fastest way to merge/join data.frames in R?
...g(y) from main.d group by g1, g2"))
)
The outputs from the two benchmark call comparing the merge calculations are:
Joining by: x
test replications elapsed relative user.self sys.self user.child sys.child
3 data.table 1 0.34 1.000000 0.31 0.01 NA NA
2...
Determine if string is in list in JavaScript
...
You can call indexOf:
if (['a', 'b', 'c'].indexOf(str) >= 0) {
//do something
}
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Current time in microseconds in java
...able on many platforms, 2) returning millisecond accuracy in a microsecond call leads to application portability issues.
– Stephen C
Nov 11 '09 at 4:17
9
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Converting integer to string in Python
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Conversion to a string is done with the builtin str() function, which basically calls the __str__() method of its parameter.
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