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range() for floats
...gt;>> from itertools import count, takewhile
>>> def frange(start, stop, step):
return takewhile(lambda x: x< stop, count(start, step))
>>> list(frange(0.5, 5, 1.5))
# [0.5, 2.0, 3.5]
sha...
What is the difference between Left, Right, Outer and Inner Joins?
...00 rows (100 students x 50 lockers). Could be useful (with filtering) as a starting point to match up the new students with the empty lockers.
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Bind a function to Twitter Bootstrap Modal Close
...
Starting Bootstrap 3 (edit: still the same in Bootstrap 4) there are 2 instances in which you can fire up events, being:
1. When modal "hide" event starts
$('#myModal').on('hide.bs.modal', function () {
console.log('...
Play a Sound with Python [duplicate]
...
I started with this answer, added in a variant that also works on OS X, and uploaded it as a pure python, cross platform, single function module to pypi, called playsound. pip install playsound. Enjoy!
– A...
What exactly are DLL files, and how do they work?
...without updating the EXE itself.
Loading a DLL:
A program loads a DLL at startup, via the Win32 API LoadLibrary, or when it is a dependency of another DLL. A program uses the GetProcAddress to load a function or LoadResource to load a resource.
Further reading:
Please check MSDN or Wikipedia fo...
How to draw a line in android
... canvas.drawLine(20, 0, 0, 20, paint);
}
}
The activity to start it:
StartDraw.java
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
public class StartDraw extends Activity {
DrawView drawView;
@Override
public void onCreate(Bundle...
async/await - when to return a Task vs void?
...,
public static async void AsyncMethod2(int num)
{
await Task.Factory.StartNew(() => Thread.Sleep(num));
}
Yes, use async and await here, they make sure your method still works correctly if an exception is thrown.
for more information see: http://msdn.microsoft.com/en-us/magazine/jj991977...
How to set the Default Page in ASP.NET?
...
Tip #84: Did you know… How to set a Start page for your Web Site in Visual Web Developer?
Simply right click on the page you want to be the start page and say "set as start page".
As noted in the comment below by Adam Tuliper - MSFT, this only works for debug...
What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
...ification).
Earlier I described how these functions run automatically at startup, but if they run automatically who is passing in the arguments? This technique assumes that all the parameters you need are already defined as global variables. So if jQuery wasn't already defined as a global variabl...
How is Docker different from a virtual machine?
... think it is possible.
A full virtualized system usually takes minutes to start, whereas Docker/LXC/runC containers take seconds, and often even less than a second.
There are pros and cons for each type of virtualized system. If you want full isolation with guaranteed resources, a full VM is the w...