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Is there a (repeat-last-command) in Emacs?
... Emacs Lisp package, which is included with standard Emacs distributions. From repeat.el's documentation:
This package defines a command that
repeats the preceding command,
whatever that was, including its
arguments, whatever they were. This
command is connected to the key C-x z.
To r...
how to permit an array with strong parameters
...iations which is not, as I remake it as a Rails 4 app, letting me save ids from the associated model in the Rails 4 version.
...
How do I get the result of a command in a variable in windows?
... with @PabloG's answer, this will only work to get the last line of output from the command, "date /t" in this case.
– John Meagher
Sep 20 '08 at 15:40
11
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What is the use of “ref” for reference-type variables in C#?
...value, by reference (ref), and by output (out).
Here's an important quote from that page in relation to ref parameters:
Reference parameters don't pass the
values of the variables used in the
function member invocation - they use
the variables themselves. Rather than
creating a new stor...
ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
...rry Pi, and the first step is gaining the ability to ssh into the device from outside my local network. For whatever reason, this is proving to be impossible and I haven't the slightest clue why. When I try to ssh into my server with user@hostname , I get the error:
...
Array_merge versus + [duplicate]
...d to the left-hand array; for keys that exist in both arrays, the elements from the left-hand array will be used, and the matching elements from the right-hand array will be ignored.
http://php.net/manual/en/language.operators.array.php
array_merge() has slightly different behavior:
If the in...
What is Inversion of Control?
...and Dependency Injection (DI) patterns are all about removing dependencies from your code.
For example, say your application has a text editor component and you want to provide spell checking. Your standard code would look something like this:
public class TextEditor {
private SpellChecker chec...
How do pointer to pointers work in C?
...
Looks good. Than minor issue was all that was stopping me from saying: Great post. The explaination itself was excellent. Changing to an up-vote. (Perhaps stackoverflow needs to review pointers?)
– Thanatos
May 23 '09 at 16:54
...
How do I “undo” a --single-branch clone?
...
Wow, this is far from intuitive! It's odd Git doesn't readily have a command to accomplish this. Yeah I got it working... and now I know about the config file int he .git directory too!
– kashiraja
May 1...
Converting dict to OrderedDict
...
Sounds like the confusion is from assuming an OrderedDict "applies" an ordering, rather than just retaining an ordering. I certainly assumed it would sort the input upon creation -- or that the items() function would return sorted items regardless of whe...