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What does “abstract over” mean?
...the similarities. We say that we abstract over the differences, but this really means we're integrating by the similarities.
For example, consider a program that takes the sum of the numbers 1, 2, and 3:
val sumOfOneTwoThree = 1 + 2 + 3
This program is not very interesting, since it's not very a...
How to find the Windows version from the PowerShell command line
...C
System Locale : ru;Russian
Hotfix(s) : 274 Hotfix(s) Installed.,[01]: KB2849697,[02]: KB2849697,[03]:...
Windows 10 output for the same command:
OS Name : Microsoft Windows 10 Enterprise N 2016 LTSB
OS Version : 10.0.14393 N/A Build 14393
OS Manufacturer ...
.gitignore all the .DS_Store files in every folder and subfolder
...k the problem you're having is that in some earlier commit, you've accidentally added .DS_Store files to the repository. Of course, once a file is tracked in your repository, it will continue to be tracked even if it matches an entry in an applicable .gitignore file.
You have to manually remove th...
Python, Unicode, and the Windows console
...at's the best way around this? Is there any way I can make Python automatically print a ? instead of failing in this situation?
...
How to tell Eclipse Workspace?
...d it shows the name of current workspace.
I tried to confirm
"Actually, this shows the last workspace that was closed, not the current workspace. If you are opening and closing several, this is not dependable."
and I am not able to reproduce it. Each time I get the currently loaded worksp...
How to encrypt String in Java
... first page that shows up via Google and the security
vulnerabilities in all the implementations make me cringe so I'm
posting this to add information regarding encryption for others as it
has been 7 Years from the original post. I hold a Masters Degree in
Computer Engineering and spent a lo...
What's the difference between “groups” and “captures” in .NET regular expressions?
...hat
each Group object contains a
collection of Captures representing
all the intermediary matches by the
group during the match, as well as the
final text matched by the group.
And a few pages later, this is his conclusion:
After getting past the .NET
documentation and actually
...
Windows batch: echo without new line
...
So you basically need an IF ERRORLEVEL==0 (...) ELSE (...) just to not harm your environment in those circumstances. Sheesh.
– SilverbackNet
Sep 22 '17 at 0:33
...
Accessing last x characters of a string in Bash
... line:
$ foo=1234567890
$ echo $foo | grep -o ...$
890
To make it optionally get the 1 to 3 last chars, in case of strings with less than 3 chars, you can use egrep with this regex:
$ echo a | egrep -o '.{1,3}$'
a
$ echo ab | egrep -o '.{1,3}$'
ab
$ echo abc | egrep -o '.{1,3}$'
abc
$ echo abcd ...
Renaming a virtualenv folder without breaking it
...
You need to adjust your install to use relative paths. virtualenv provides for this with the --relocatable option. From the docs:
Normally environments are tied to a
specific path. That means that you
cannot move an environment around or
copy ...