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Replace transparency in PNG images with white background
...ings with Image Magick "convert" operations, but either nothing happens at all or I get an error. I don't want to go to an intermediate JPG form because I don't want the artifacts. Of course it's easy to do this in Gimp or Photoshop or whatever, but I'd really rather script it from the command lin...
DLL and LIB files - what and why?
...program to run properly - libraries. But why do compilers generate them at all? Wouldn't it be easier to just include all the code in a single executable? And what's the difference between DLL's and LIB's?
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What Ruby IDE do you prefer? [closed]
... Aptana seems to be the best IDE for Ruby, but I hate how it changes all my key mappings for the various editors (e.g., they remap <ctrl>-1 in the Java editor), and I hate how it writes databases in whatever directory I happen to be in when I start the IDE. Yuck. They're obviously not ...
Is there a way to navigate to real implementation of method behind an interface?
In Visual Studio, when you right-click a method call, you go to the implementation of that method inside a class except if you access this method through an interface: in that case you go to the interface method not to the actual implementation.
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Combine two data frames by rows (rbind) when they have different sets of columns
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@MERose Hadley: "Yes, all dplyr methods ignore rownames."
– zx8754
Dec 7 '17 at 9:11
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HTML: Include, or exclude, optional closing tags?
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The optional ones are all ones that should be semantically clear where they end, without needing the end tag.
E.G. each <li> implies a </li> if there isn't one right before it.
The forbidden end tags all would be immediately followe...
How can I use Autolayout to set constraints on my UIScrollview?
... Apple describes in the Technical Note.
I also had a lot of trouble originally getting Auto Layout to work with UIScrollView. The key to getting it to work is making sure that all of the items in the scroll view, taken together, have constraints that eventually link to all sides of the scroll view ...
Create an empty data.frame
I'm trying to initialize a data.frame without any rows. Basically, I want to specify the data types for each column and name them, but not have any rows created as a result.
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Use of Application.DoEvents()
... There's been an enormous amount of backlash against it, but nobody ever really explains why it is "bad". The same kind of wisdom as "don't mutate a struct". Erm, why does the runtime and the language supports mutating a struct if that's so bad? Same reason: you shoot yourself in the foot if you ...
git returns http error 407 from proxy after CONNECT
...e to get local issuer certificate" error)
in my case, no need of defining all_proxy variable
and finally
git clone https://github.com/someUser/someRepo.git
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