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Using R to list all files with a specified extension
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$ at the end means that this is end of string. "dbf$" will work too, but adding \\. (. is special character in regular expressions so you need to escape it) ensure that you match only files with extension .dbf (in case you have e.g. .adbf files).
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Test iOS app on device without apple developer program or jailbreak
...rovisioning. However, the capabilities available to your app, described in Adding Capabilities, are restricted when you don’t belong to the Apple Developer Program.
The precise steps to getting your app onto your iOS device or Apple Watch follow immediately thus (screenshots omitted for ease of s...
What's the difference between git reset --mixed, --soft, and --hard?
...is initially unstaged. In order to commit it, you must stage it—that is, add it to the index—using git add. When you make a commit, the changes that are committed are those that have been added to the index.
git reset changes, at minimum, where the current branch (HEAD) is pointing. The differe...
How to tell bash that the line continues on the next line
... lines exceeded 80 columns in length. What is the character or thing to be added to the line in order to indicate that the line continues on the next line?
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How to add custom validation to an AngularJS form?
I have a form with input fields and validation setup by adding the required attributes and such. But for some fields I need to do some extra validation. How would I "tap in" to the validation that FormController controls?
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config.assets.compile=true in Rails production, why not?
... and in any vendor/assets folders used by plugins.
That is a lot of overhead as, to be honest, the code is not optimized for speed.
This will have an impact on how fast asset go over the wire to the client, and will negatively impact the page load times of your site.
Compare with the default:
Wh...
Vim Configure Line Number Coloring
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help 'number'
which is the way to get help on the 'number' option, instead of the :number command.
To actually change the displayed colour:
:highlight LineNr ctermfg=grey
This would change the foreground colour for LineNr on a character terminal to grey. If you are using gVim, you can:
:high...
django unit tests without a db
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Mauro Baraldi
5,05422 gold badges2424 silver badges3737 bronze badges
answered Aug 10 '11 at 0:08
mohi666mohi666
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How does functools partial do what it does?
I am not able to get my head on how the partial works in functools.
I have the following code from here :
7 Answers
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Difference between volatile and synchronized in Java
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It's important to understand that there are two aspects to thread safety.
execution control, and
memory visibility
The first has to do with controlling when code executes (including the order in which instructions are executed) and whether it can execute concurrently, and the secon...