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What are the differences between .so and .dylib on osx?
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The Mach-O object file format used by Mac OS X for executables and libraries distinguishes between shared libraries and dynamically loaded modules. Use otool -hv some_file to see the filetype of some_file.
Mach-O shared libraries have the file type MH_DYLIB and carry the extension .dyli...
Do I need all three constructors for an Android custom view?
...ext context, AttributeSet attrs), otherwise you will get an Exception when Android tries to inflate your View.
If you add your View from xml and also specify the android:style attribute like :
<com.mypack.MyView
style="@styles/MyCustomStyle"
...
/>
the 2nd constructor wi...
select and update database record with a single queryset
How do I run an update and select statements on the same queryset rather than having to do two queries:
- one to select the object
- and one to update the object
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Python dict how to create key or append an element to key?
...his answer suggests a far better way. In fact it gets set() as an argument and allows you to use add() method...
– fatih_dur
Feb 9 '16 at 2:27
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What is the relative performance difference of if/else versus switch statement in Java?
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That's micro optimization and premature optimization, which are evil. Rather worry about readabililty and maintainability of the code in question. If there are more than two if/else blocks glued together or its size is unpredictable, then you may high...
HTML/Javascript change div content
...nt").innerText = "<b>bold text?</b>"; will behave differently, and sometimes quite usefully, to document.getElementById("content").innerHTML = "<b>bold text?</b>";
– Isaac
May 23 '13 at 9:51
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Can I Replace Apache with Node.js?
... have a website running on CentOS using the usual suspects (Apache, MySQL, and PHP). Since the time this website was originally launched, it has evolved quite a bit and now I'd like to do fancier things with it—namely real-time notifications. From what I've read, Apache handles this poorly. I'm wo...
Java: Equivalent of Python's range(int, int)?
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From Java 8, IntStream and LongStream have methods range and rangeClosed.
– Jose Manuel Gomez Alvarez
Dec 19 '18 at 22:51
a...
Group by multiple columns in dplyr, using string vector input
I'm trying to transfer my understanding of plyr into dplyr, but I can't figure out how to group by multiple columns.
9 Answ...
What do these words mean in Git: Repository, fork, branch, clone, track?
...oject (take the source from someone's repository at certain point in time, and apply your own diverging changes to it), you would clone the remote repository to create a copy of it, then do your own work in your local repository and commit changes.
Within a repository you have branches, which are e...