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What is the result of % in Python?
...f a is uninteresting. Consider taking a POSIX timestamp (seconds since the start of 1970) and turning it into the time of day. Since there are 24*3600 = 86400 seconds in a day, this calculation is simply t % 86400. But if we were to express times before 1970 using negative numbers, the "truncate tow...
Reset C int array to zero : the fastest way?
...rwritten using pointer arithmetics ((float *)((a)+x)). The two intrinsics (starting with _mm256) just create a zero-initialized 32byte register and store it to the current pointer. This are the first 3 lines. The rest just handles all special cases where the last 32byte block shouldn't be fully over...
What is the difference between JSF, Servlet and JSP?
...th taglibs.
When a JSP is requested for the first time or when the web app starts up, the servlet container will compile it into a class extending HttpServlet and use it during the web app's lifetime. You can find the generated source code in the server's work directory. In for example Tomcat, it's ...
How to create a temporary directory?
...be called on the EXIT signal
trap cleanup EXIT
# implementation of script starts here
...
Directory of bash script from here.
Bash traps.
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Is there a way to provide named parameters in a function call in JavaScript?
... Python. Python supports named parameters without any trickery.... Since I started using Python (some time ago) everything became easier. I believe that every language should support named parameters, but that just isn't the case.
Lot's of people say to just use the "Pass an object" trick so that y...
Why use 'virtual' for class properties in Entity Framework model definitions?
...t it has many performance benefits, similar to instantiating an object and starting it at null. Entity Framework uses a lot of reflection and dynamics, which can degrade performance, and the need to have a flexible model that can scale to demand is critical to managing performance.
To me, that alw...
What is Weak Head Normal Form?
...order in which you do this does not matter much, but it's still important: start with the outermost application and proceed from left to right; this is called lazy evaluation.
Example:
take 1 (1:2:3:[])
=> { apply take }
1 : take (1-1) (2:3:[])
=> { apply (-) }
1 : take 0 (2:3:[])
...
Using msbuild to execute a File System Publish Profile
...ish" target with msbuild that ignored the profile.
So my msbuild command started with:
msbuild /t:restore;build;publish
This correctly triggerred the publish process, but no combination or variation of "/p:PublishProfile=FolderProfile" ever worked to select the profile I wanted to use ("FolderP...
how do you filter pandas dataframes by multiple columns
...
Start from pandas 0.13, this is the most efficient way.
df.query('Gender=="Male" & Year=="2014" ')
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Are tuples more efficient than lists in Python?
...believe this to be due to the greater cache locality of the tuple once you start using the tuple due to the removal of the second layer of indirection you demonstrate.
– horta
Dec 21 '16 at 18:35
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