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Why would a JavaScript variable start with a dollar sign? [duplicate]
...(_) are permitted anywhere in an IdentifierName.
As such, the $ sign may now be used freely in variable names. Certain frameworks and libraries have their own conventions on the meaning of the symbol, noted in other answers here.
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How do you create different variable names while in a loop? [duplicate]
...lists instead, as others propose. Unless, of course, you really wanted to know how to do it, but did not want to use it.
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When to delete branches in Git?
...ranch on GitHub.
Because some links can't be changed, such as in email, I now avoid hyperlinking to GitHub branches entirely and link to a commit or tag from day one.
I prefer to delete branches after they're merged in. This prevents the visual clutter of a long list of branches in your repository...
How to split long commands over multiple lines in PowerShell
... are using Notepad++, it will even highlight correctly as a string block.
Now, if you wanted that string to contain double quotes, too, just add them in, like this:
$myvar = "Site"
$mystring = @"
<a href="http://somewhere.com/somelocation">
Bob's $myvar
</a>
"@
You would get exactly ...
Cached, PHP generated Thumbnails load slowly
... currently working on reducing the open connections (went from 40 orso to now 30 orso... the final push is the most difficult as some of the images are repweating backgrounds and cannot go into a sprite (or???)
– Sam
Mar 10 '11 at 8:48
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Using GPU from a docker container?
...s pre-installed. The dockerfile is available on dockerhub if you want to know how this image was built.
You'll want to customize this command to match your nvidia devices. Here's what worked for me:
$ sudo docker run -ti --device /dev/nvidia0:/dev/nvidia0 --device /dev/nvidiactl:/dev/nvidiactl ...
How do I remove an item from a stl vector with a certain value?
...ontainer_type::erase to do the REAL removal of the extra elements that are now at the end of the container:
std::vector<int> vec;
// .. put in some values ..
int int_to_remove = n;
vec.erase(std::remove(vec.begin(), vec.end(), int_to_remove), vec.end());
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Best way to assert for numpy.array equality?
...iable.
update
A few versions ago numpy obtained assert_allclose which is now my favorite since it allows us to specify both absolute and relative error and doesn't require decimal rounding as the closeness criterion.
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When to use ' (or quote) in Lisp?
...et (+ 3 2), + is then invoked on 3 and 2 yielding 5. Our original form is now (* 5 3) yielding 15.
Explain quote Already!
Alright. As seen above, all arguments to a function are evaluated, so if you would like to pass the symbol a and not its value, you don't want to evaluate it. Lisp symbols ca...
libxml/tree.h no such file or directory
....dylib. That adds the libxml2 library to your project.
2. Project settings
Now you have to tell your project where to look for it three more times.
Select the Build Settings tab.
Scroll down to the Linking section.
Under your projects columns double click on the Other Linker Flags row.
Click the + a...