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How to remove EXIF data without recompressing the JPEG?
...ress it, as recompressing the JPEG will degrade the quality, as well as usually increasing the file size.
11 Answers
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Grouping functions (tapply, by, aggregate) and the *apply family
Whenever I want to do something "map"py in R, I usually try to use a function in the apply family.
10 Answers
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When do you use varargs in Java?
...lso can receive an indeterminate number of objects but a varargs parameter allows more flexibility and convenience at the point of invocation. You can write code to build an array and pass it, or you can let Java do it for you when you choose to receive it in a varargs parameter.
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How to force composer to reinstall a library?
...e the composer update command composer will detect any changes you made locally and ask if you want to discard them.
Your .gitignore file is related to your root project (ZF2 skeleton) and it prevents the vendor dir (where your third party libs are) from committing to your own VCS. The ignore file ...
Evaluate expression given as a string
...s("5+5")
[1] "character"
> class(parse(text="5+5"))
[1] "expression"
Calling eval() invokes many behaviours, some are not immediately obvious:
> class(eval(parse(text="5+5")))
[1] "numeric"
> class(eval(parse(text="gray")))
[1] "function"
> class(eval(parse(text="blue")))
Error in eva...
Apache Spark: The number of cores vs. the number of executors
...
To hopefully make all of this a little more concrete, here’s a worked example of configuring a Spark app to use as much of the cluster as
possible: Imagine a cluster with six nodes running NodeManagers, each
equipped with 16 cores and 64GB o...
When should I use std::thread::detach?
... completes. This is easy to understand, but what's the difference between calling detach() and not calling it?
5 Answers
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An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode
I Installed DotNetOpenAuth SDK-3.4.5.10201.vsix and I can't get it working.
It works locally (when I run as localhost) but when i try to publish it ain't working.
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Postgres DB Size Command
What is the command to find the size of all the databases?
10 Answers
10
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Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
...means that the compiler is not obligated provide an error nor a warning usually because it can be difficult to diagnose in all cases. We can see this from the definition of undefined behavior in the draft standard in section 1.3.24 which says:
[...]Permissible undefined behavior ranges from igno...