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Android SQLite DB When to Close
...a SQLite database on android. My database manager is a singleton and right now opens a connection to the database when it is initialized. It is safe to leave the database open the entire time so that when someone calls my class to work with the database it is already open? Or should I open and close...
iOS Remote Debugging
...se follow gregers' advice.
New answer:
Use Weinre.
Old answer:
You can now use Safari for remote debugging. But it requires iOS 6.
Here is a quick translation of http://html5-mobile.de/blog/ios6-remote-debugging-web-inspector
Connect your iDevice via USB with your Mac
Open Safari on your Mac ...
Recreating a Dictionary from an IEnumerable
...
@DanVerdolino I know that. You'd think that because it's like one of the most common things you might want to do with an IEnumerable of KVPs.
– Casey
Jul 1 '14 at 15:42
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In C++, is it still bad practice to return a vector from a function?
...ts—such as vectors/arrays—in many programming languages. Is this style now acceptable in C++0x if the class has a move constructor, or do C++ programmers consider it weird/ugly/abomination?
...
Is there an equivalent of 'which' on the Windows command line?
...
@mawg, the original was for where you know the extension since it mirrors which under UNIX (where that extension-adding trickery doesn't occur). I've now added one which can do what you wish but it's no longer a simple command so much as a script. It first tries t...
How to install pip with Python 3?
...ay detailed below.
The manual way
If you want to do it the manual way, the now-recommended method is to install using the get-pip.py script from pip's installation instructions.
Install pip
To install pip, securely download get-pip.py
Then run the following (which may require administrator access):...
Difference between git stash pop and git stash apply
...ains "Hello" string.
Let's modify the file and add " world" string to it. Now you want to move to a different branch to fix a minor bug you've just found, so you need to stash your changes:
git stash
You moved to the other branch, fixed the bug and now you're ready to continue working on your ma...
git add remote branch
... things are setup correctly, you will get a list of the remote references. Now
git fetch origin
will work barring any other issues like an unplugged network cable.
Once you have that done, you can get any branch you want that the above command listed with
git checkout some-branch
this will cr...
Why doesn't 'ref' and 'out' support polymorphism?
...e, Giraffe, Turtle and Tiger, with the obvious subclassing relationships.
Now suppose you have a method void M(ref Mammal m). M can both read and write m.
Can you pass a variable of type Animal to M?
No. That variable could contain a Turtle, but M will assume that it contains only Mamma...
Resizing an image in an HTML5 canvas
...shop with the resampling set to 'Nearest Neighbor' instead of Bicubic. I know its possible to get this to look right, because this site can do it just fine using a canvas as well. I've tried using the same code they do as shown in the "[Source]" link, but it still looks terrible. Is there somet...