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What does “Document-oriented” vs. Key-Value mean when talking about MongoDB vs Cassandra?
...ions (a simple disk access) and I see this model as a kind of non volatile cache (i.e. well suited if you need fast accesses by key to long-lived data).
A document-oriented database extends the previous model and values are stored in a structured format (a document, hence the name) that the databas...
Android: What's the difference between Activity.runOnUiThread and View.post?
...st is helpful when you don't have a direct access to the activity.
In both cases, if not on UI thread, Handler#post(Runnable) will be called behind the scenes.
As CommonsWare mentioned in the comment, there is a difference between the two - when called on Ui thread, Activity#runOnUiThread will call ...
Is the 'override' keyword just a check for a overridden virtual method?
...at you are explicit about what you mean, so that an otherwise silent error can be diagnosed:
struct Base
{
virtual int foo() const;
};
struct Derived : Base
{
virtual int foo() // whoops!
{
// ...
}
};
The above code compiles, but is not what you may have meant (note the...
What is the X-REQUEST-ID http header?
...sed by clients, it might be difficult to correlate requests (that a client can see) with server logs (that the server can see).
The idea of the X-Request-ID is that a client can create some random ID and pass it to the server. The server then include that ID in every log statement that it creates. ...
How do I configure emacs for editing HTML files that contain Javascript?
...answered Aug 11 '12 at 0:31
Kai CarverKai Carver
1,8842424 silver badges2323 bronze badges
...
Parallel.ForEach vs Task.Factory.StartNew
...ce far more overhead than necessary, especially for large collections, and cause the overall runtimes to be slower.
FYI - The Partitioner used can be controlled by using the appropriate overloads to Parallel.ForEach, if so desired. For details, see Custom Partitioners on MSDN.
The main difference...
What are the differences between .gitignore and .gitkeep?
...
.gitkeep isn’t documented, because it’s not a feature of Git.
Git cannot add a completely empty directory. People who want to track empty directories in Git have created the convention of putting files called .gitkeep in these directories. The file co...
How do I squash two non-consecutive commits?
...
You can run git rebase --interactive and reorder D before B and squash D into A.
Git will open an editor, and you see a file like this, ex: git rebase --interactive HEAD~4
pick aaaaaaa Commit A
pick bbbbbbb Commit B
pick cccccc...
How to slice an array in Bash
...y slicing like in Python (From the rebash library):
array_slice() {
local __doc__='
Returns a slice of an array (similar to Python).
From the Python documentation:
One way to remember how slices work is to think of the indices as pointing
between elements, with the left edge of...
Where is a complete example of logging.config.dictConfig?
...to use dictConfig , but the documentation is a little bit abstract. Where can I find a concrete, copy+paste-able example of the dictionary used with dictConfig ?
...