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In Docker, what's the difference between a container and an image? [duplicate]
... dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var
root@48cff2e9be75:/# cat > foo
This is a really important file!!!!
root@48cff2e9be75:/# exit
Don't expect that file to stick around when you exit and restart the image. You're restarting from exactly t...
Hidden Features of C++? [closed]
...e type (i.e. no defaulted arguments) function1 and function2 are implictly converted to function pointers, and the result is implicitly converted back.
– MSalters
Nov 12 '10 at 15:49
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How to get the number of Characters in a String?
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???????????? alone is one grapheme, but, from unicode to code points converter, 4 runes:
????: women (1f469)
dark skin (1f3fe)
ZERO WIDTH JOINER (200d)
????red hair (1f9b0)
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How do I iterate over a range of numbers defined by variables in Bash?
... ((i=1;i<=100000;++i)); do :; done real 0m21.220s user 0m19.763s sys 0m1.203s $ time for i in $(eval echo "{1..100000}"); do :; done; real 0m13.881s user 0m13.536s sys 0m0.152s
– Marcin Zaluski
Jul 4 '12 at 14:55
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Linq: adding conditions to the where clause conditionally
...ses are optionally attached to it. The final Select is optional. I use to convert the database rows objects into result "Fruit" objects.
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How do you know a variable type in java?
...nceof String; will cause error error: incompatible types: Double cannot be converted to String
– Alex78191
Feb 20 at 18:48
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Initializing a static std::map in C++
...the following way (since C++17):
// Example
template<>
class StringConverter<CacheMode> final
{
public:
static auto convert(CacheMode mode) -> const std::string&
{
// validate...
return s_modes.at(mode);
}
private:
static inline const std::map<...
LEFT OUTER JOIN in LINQ
...here you joined it. Suppose if those are of types string and int then just convert string key to int.
– Ankit
Jul 27 '16 at 9:35
2
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How can I get the DateTime for the start of the week?
...16:00:00Z which is Mon, 03 Sep 2012 00:00:00 in local time. So it needs to convert dt to local time or do something a bit smarter. It would also need to return the result as UTC if the input was UTC.
– row1
Sep 6 '12 at 4:12
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How to compare two NSDates: Which is more recent?
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Late to the party, but another easy way of comparing NSDate objects is to convert them into primitive types which allows for easy use of '>' '<' '==' etc
eg.
if ([dateA timeIntervalSinceReferenceDate] > [dateB timeIntervalSinceReferenceDate]) {
//do stuff
}
timeIntervalSinceReferen...