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How do I export a project in the Android studio?
... Signed APK
Then Once you click on the Generate Signed APK then there is info dialog message appear.
Click on the Create New button if you don't have any keystore file. If you have click on the Choose Existing.
Once you click on the Create New button then now dialog box appear where you need t...
Why doesn't C++ have a garbage collector?
...weep is faster (less impact on overall performance) but it suffers from a "freeze the world" syndrome: i.e. when the GC kicks in, everything else is stopped until the GC has made its cleanup. If you wish to build a server that answers in a few milliseconds... some transactions will not live up to yo...
How do you see recent SVN log entries?
... that can you have a quite granular control over what is printed. For more info about these -r expressions refer to svn help log or the relevant chapter in the book Version Control with Subversion
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Cannot push to Git repository on Bitbucket
...s this is something you type into GitBash).
Open GitBash
Set your global info if you haven't already:
$ git config --global user.name "Your Name"
$ git config --global user.email "you@example.com"
Check for OpenSSH:
$ ssh -v localhost
OpenSSH_4.6p1, OpenSSL...
See something like that?
Yes:...
How can I get column names from a table in Oracle?
...
For SQL Server 2008, we can use information_schema.columns for getting column information
SELECT *
FROM information_schema.columns
WHERE table_name = 'Table_Name'
ORDER BY ordinal_position
...
Getting a random value from a JavaScript array
...imization while producing output using UI elements, ~~ wins the game. MORE INFO
var rand = myArray[~~(Math.random() * myArray.length)];
But if you know that the array is going to have millions of elements than you might want to reconsider between Bitwise Operator and Math.Floor(), as bitwise operat...
INNER JOIN vs LEFT JOIN performance in SQL Server
...not been discussed yet.
When using an outer join, the optimizer is always free to drop the outer joined table from the execution plan if the join columns are the PK of the outer table, and none of the outer table columns are referenced outside of the outer join itself. For example SELECT A.* FROM A...
Shared-memory objects in multiprocessing
... utility class to work around it.
I'm using multiprocessing.RawArray (lockfree), and also the access to the arrays is not synchronized at all (lockfree), be careful not to shoot your own feet.
With the solution I get speedups by a factor of approx 3 on a quad-core i7.
Here's the code:
Feel free t...
Limit the length of a string with AngularJS
... so that trimmed text will be visible on mouse over.
<div class="trim-info" tooltip="{{modal.title}}">{{modal.title}}</div>
.trim-info {
max-width: 50px;
display: inline-block;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
lin...
C++ - passing references to std::shared_ptr or boost::shared_ptr
...o an existing shared_ptr.
The downside is that copied a shared_ptr is not free: even "lock-free" implementations have to use an interlocked operation to honour threading guarantees. So there may be situations where a program can be significantly sped up by changing a shared_ptr into a shared_ptr &a...