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R.exe, Rcmd.exe, Rscript.exe and Rterm.exe: what's the difference?
...t it is provided for backwards compatibility.
Rterm.exe is also a holdover from the days when Rcmd.exe was used. Can be ignored these days.
R CMD BATCH is a crutch that was needed in the days before littler and Rscript.exe, and similarly lingering from old docs and habits..
Rscript.exe is your frien...
Stack, Static, and Heap in C++
...ide the scope of this answer, but suffice to say you always add and remove from the end only. Stacks usually start high and grow down to lower addresses. You run out of memory when the stack meets the dynamic allocator somewhere in the middle (but refer to physical versus virtual memory and fragment...
How to stop event bubbling on checkbox click
...ubbling of an event to
parent elements, preventing any parent
handlers from being notified of the
event.
event.preventDefault()
Prevents the browser from executing
the default action. Use the method
isDefaultPrevented to know whether
this method was ever called (on that
event ob...
Renaming branches remotely in Git
..._branch new_branch
git push -u origin new_branch
To remove an old branch from remote:
git push origin :old_branch
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How do I get the information from a meta tag with JavaScript?
The information I need is in a meta tag. How can I access the "content" data of the meta tag when property="video" ?
18 ...
Is there any way to ignore INSTALL_FAILED_VERSION_DOWNGRADE on application install with the Android
...nd use adb uninstall -k <package> and then installing the older apk.
From the adb usage guide:
adb uninstall [-k] <package> - remove this app package from the device
('-k' means keep the data and cache directories)
I've tried it myself with my apk, ...
Meaning of $? (dollar question mark) in shell scripts
...returns a status of 1:
true
echo $? # echoes 0
false
echo $? # echoes 1
From the manual: (acessible by calling man bash in your shell)
$? Expands to the exit status of the most recently executed foreground pipeline.
By convention an exit status of 0 means success, and non...
What is “lifting” in Haskell?
...ed in an Applicative, such as lists, IO, etc.
Another common lift is lift from Control.Monad.Trans. It transforms a monadic action of one monad to an action of a transformed monad.
In general, "lift" lifts a function/action into a "wrapped" type (so the original function gets to work "under the wr...
How to return multiple lines JSX in another return statement in React?
...menu code into a single component "anchored" at ul than to shoehorn in lis from multiple sources. I think it made also the mental model for the UI a little cleaner.
– ruffin
Mar 24 '17 at 17:43
...
proper hibernate annotation for byte[]
...ty?
It depends on what you want. JPA can persist a non annotated byte[]. From the JPA 2.0 spec:
11.1.6 Basic Annotation
The Basic annotation is the simplest
type of mapping to a database column.
The Basic annotation can be applied
to a persistent property or instance
variable of ...