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Can a Windows batch file determine its own file name?
...st the filename without the extension.
Write %~n0%~x0 to get the filename and extension.
Also possible to write %~nx0 to get the filename and extension.
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When should I really use noexcept?
...r every function declaration would greatly reduce programmer productivity (and frankly, would be a pain).
Well, then use it when it's obvious that the function will never throw.
When can I realistically expect to observe a performance improvement after using noexcept? [...] Personally, I care ...
How to tell which commit a tag points to in Git?
I have a bunch of unannotated tags in the repository and I want to work out which commit they point to. Is there a command that that will just list the tags and their commit SHAs? Checking out the tag and looking at the HEAD seems a bit too laborious to me.
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Cannot install node modules that require compilation on Windows 7 x64/VS2012
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To do it without VS2010 installation, and only 2012, set the msvs_version flag:
node-gyp rebuild --msvs_version=2012
npm install <module> --msvs_version=2012
as per @Jacob comment
npm install --msvs_version=2013 if you have the 2013 version
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Why an interface can not implement another interface?
...ine abstract methods (the sane way an interface does), it is still a class and still has to be inherited (extended) and not implemented.
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Convert SVG to PNG in Python
...ry.
I made a minimalist "hello world" that renders SVG to a cairo
surface and writes it to disk:
import cairo
import rsvg
img = cairo.ImageSurface(cairo.FORMAT_ARGB32, 640,480)
ctx = cairo.Context(img)
## handle = rsvg.Handle(<svg filename>)
# or, for in memory SVG data:
handle= rsvg.Hand...
How do I upgrade PHP in Mac OS X?
... it will probably give you a newer version of PHP. I'm running OS X 10.6.2 and it has PHP 5.3.0.
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Setting an environment variable before a command in Bash is not working for the second command in a
In a given shell, normally I'd set a variable or variables and then run a command. Recently I learned about the concept of prepending a variable definition to a command:
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find vs find_by vs where
...is used as a helper when you're searching for information within a column, and it maps to such with naming conventions. For instance, if you have a column named name in your database, you'd use the following syntax:
Model.find_by(name: "Bob")
.where is more of a catch all that lets you use a bit...
Force Intellij IDEA to reread all maven dependencies
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Press Ctrl+Shift+A to find actions, and input "reimport", you will find the "Reimport All Maven Projects".
On a Mac, use ⌘+⇧+A instead.
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