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Pick a random element from an array
...array = ["Frodo", "sam", "wise", "gamgee"]
let randomIndex = Int(arc4random_uniform(UInt32(array.count)))
print(array[randomIndex])
The castings are ugly, but I believe they're required unless someone else has another way.
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Is there a better way to express nested namespaces in C++ within the header
...ry rare cases in C++ where I actually like the use of #defines.
#define MY_COMPANY_BEGIN namespace MyCompany { // begin of the MyCompany namespace
#define MY_COMPANY_END } // end of the MyCompany namespace
#define MY_LIBRARY_BEGIN namespace MyLibrary { // begin of the MyLib...
I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
...to be in Ruby 1.8.7. Looks like it was added in 1.9.3: apidock.com/ruby/v1_9_3_392/SecureRandom/uuid/class
– existentialmutt
Aug 25 '14 at 17:31
2
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Differences between lodash and underscore [closed]
...Of"), while in older browsers they will not. Also, Underscore methods like _.clone preserve holes in arrays, while others like _.flatten don't.
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How do I bind a WPF DataGrid to a variable number of columns?
...c readonly Dictionary<DataGrid, NotifyCollectionChangedEventHandler> _handlers;
static DataGridColumnsBehavior()
{
_handlers = new Dictionary<DataGrid, NotifyCollectionChangedEventHandler>();
}
private static void BindableColumnsPropertyChanged(DependencyObject ...
Where is SQL Server Management Studio 2012?
... work, so I did the following and it did: 1. Found the SQLManagementStudio_x86_ENU.exe for 2008 and ran it via the command prompt like so: SQLManagementStudio_x86_ENU.exe /action=uninstall /features=Tools 2. Did the same thing to uninstall 2012 3. Restarted my computer 3. Reinstalled SSMS 2012 u...
file_get_contents(“php://input”) or $HTTP_RAW_POST_DATA, which one is better to get the body of JSON
file_get_contents("php://input") or $HTTP_RAW_POST_DATA - which one is better to get the body of JSON request?
6 Answers...
How to test code dependent on environment variables using JUnit?
...erviceImpl {
public void doSomeFooStuff() {
System.getenv("FOO_VAR_1");
System.getenv("FOO_VAR_2");
System.getenv("FOO_VAR_3");
// Do the other Foo stuff
}
}
You could do the following:
package com.foo.service.impl;
import static org.mockito.Mockito.when...
How to check Django version
... is as an executable command:
$ python -c "import django; print(django.get_version())"
2.0
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What is the most robust way to force a UIView to redraw?
...r setNeedsDisplay];
[layer displayIfNeeded];
}
Also implement a draw(_: CALayer, in: CGContext) method that'll call your private/internal drawing method (which works since every UIView is a CALayerDelegate):
Swift
/// Called by our CALayer when it wants us to draw
/// (in compliance wit...