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Can a C# lambda expression have more than one statement?
...ou have a class:
public class Point
{
public int X { get; set; }
public int Y { get; set; }
}
With the C# 7.0 inside this class you can do it even without curly brackets:
Action<int, int> action = (x, y) => (_, _) = (X += x, Y += y);
and
Action<int, int...
Async/await vs BackgroundWorker
...o with async/await and Task... i.e. you won't manually create the object, set the properties and set the event handlers. you'd only fill in the body of the DoWork, RunWorkerCompleted, and ProgressChanged event handlers.
If you "converted" that to async/await, you'd do something like:
IProgr...
What does static_assert do, and what would you use it for?
...ert(sizeof(void *) >= sizeof i);
foo((void *) i);
You might want to asset that char type is signed
static_assert(CHAR_MIN < 0);
or that integral division with negative values rounds towards zero
static_assert(-5 / 2 == -2);
And so on.
Run-time assertions in many cases can be used inst...
Flask vs webapp2 for Google App Engine
...to be customized to look like popular micro-frameworks and you have a good set of compelling reasons to go for it. Also, webapp2 has a big chance to be included in a future SDK release (this is extra-official, don't quote me :-) which will push it forward and bring new developers and contributions.
...
MySql server startup error 'The server quit without updating PID file '
...
Did you follow the instructions from brew install mysql?
Set up databases to run AS YOUR USER ACCOUNT with:
For mysql 5.x:
unset TMPDIR
mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
To set up base tab...
How to manually include external aar package using new Gradle Android Build System
...
Right click on your project and select "Open Module Settings".
Click the "+" button in the top left corner of window to add a new module.
Select "Import .JAR or .AAR Package" and click the "Next" button.
Find the AAR file using the ellipsis button "..." beside t...
Remove the legend on a matplotlib figure
...
You could use the legend's set_visible method:
ax.legend().set_visible(False)
draw()
This is based on a answer provided to me in response to a similar question I had some time ago here
(Thanks for that answer Jouni - I'm sorry I was unable to mark ...
In Windows Azure: What are web role, worker role and VM role?
... created for you and stored as a vhd in blob storage. You then RDP/ssh and set it up how you like.
Wearing the architect hat, this is where it gets fun and interesting. You can run web services in a Web Role or worker role (and be able to open ports in either); You can host Tomcat or other web serv...
Add days to JavaScript Date
...dDays = function(days) {
var date = new Date(this.valueOf());
date.setDate(date.getDate() + days);
return date;
}
var date = new Date();
console.log(date.addDays(5));
This takes care of automatically incrementing the month if necessary. For example:
8/31 + 1 day will become 9/1.
...
Error inflating when extending a class
...hould have provided a constructor for the two parameter 'Context, AttributeSet' case. I also needed to give the constructor(s) public access. Here's my fix:
public class GhostSurfaceCameraView extends SurfaceView implements SurfaceHolder.Callback {
SurfaceHolder mHolder;
Camera mCam...