大约有 30,000 项符合查询结果（耗时：0.0438秒） [XML]
Measuring code execution time
... need to use also Stopwatch.Reset on after every single line to calculate. Based on your line; take a look ideone.com/DjR6ba
– Soner Gönül
Jul 25 '13 at 6:48
...
Retrieve version from maven pom.xml in code
...’ via @..@ placeholders, e.g.
project.artifactId=myproject
project.name=Demo
project.version=X.X.X.X
project.description=Demo project for info endpoint
info.build.artifact=@project.artifactId@
info.build.name=@project.name@
info.build.description=@project.description@
info.build.version=@project....
How do I replace NA values with zeros in an R dataframe?
...
The dplyr hybridized options are now around 30% faster than the Base R subset reassigns. On a 100M datapoint dataframe mutate_all(~replace(., is.na(.), 0)) runs a half a second faster than the base R d[is.na(d)] <- 0 option. What one wants to avoid specifically is using an ifelse() or ...
Meaning of = delete after function declaration
... class in a hierarchy is typically
a disaster: given only a pointer to a base, we simply don’t know what
members the derived class has, so we can’t know how to copy
them. So, the best thing to do is usually to delete the default copy
and move operations, that is, to eliminate the default...
How many random elements before MD5 produces collisions?
...n separate directories. I use this to store user files in separate folders based on their user ID in S3.
For example: "mybucket/users/1234/somefile.jpg". It's not exactly the same as a directory in a file system, but the S3 API has some features that let it work almost the same. I can ask it to li...
How to get line count of a large file cheaply in Python?
...
645
One line, probably pretty fast:
num_lines = sum(1 for line in open('myfile.txt'))
...
How to Compare Flags in C#?
...tType(),
this.GetType()));
}
ulong uFlag = ToUInt64(flag.GetValue());
ulong uThis = ToUInt64(GetValue());
// test predicate
return ((uThis & uFlag) == uFlag);
}
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Are HTML Image Maps still used?
...ratio, and then using javascript to overwrite the coordinates. The jquery based image size event handler is $(window).resize(function() { ....yourcode... });
– skidadon
Aug 11 '15 at 3:44
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Which version of Python do I have installed?
... -v command, since it tells architecture of the installed python (32bit or 64bit)
– Abouzar Nouri
Jan 10 '17 at 12:28
1
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How different is Scrum practice from Agile Practice? [duplicate]
... as Client requirement
Pair Programming
Test Driven Development (TDD)
Team based estimation
Refactoring
Simple Design
Evolutionary Design
Retrospective
Daily Stand up meeting
Continuous Integration of code
Client Demo etc.
For more details, you may wish to go through my blog:
http://chandrimachoud...