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What does the `#` operator mean in Scala?
...ala. Consider this simple example:
class A {
class B
def f(b: B) = println("Got my B!")
}
Now let's try something with it:
scala> val a1 = new A
a1: A = A@2fa8ecf4
scala> val a2 = new A
a2: A = A@4bed4c8
scala> a2.f(new a1.B)
<console>:11: error: type mismatch;
found : a...
How to get the error message from the error code returned by GetLastError()?
...
In general, you need to use FormatMessage to convert from a Win32 error code to text.
From the MSDN documentation:
Formats a message string. The function
requires a message definition as
input. The message definition can come
from a buffer passed into the
f...
What is the purpose of the word 'self'?
... class.
Now when ObjectA.methodA(arg1, arg2) is called, python internally converts it for you as:
ClassA.methodA(ObjectA, arg1, arg2)
The self variable refers to the object itself.
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impro...
Parallel foreach with asynchronous lambda
...t;T>(this IEnumerable<T> source, Func<T, Task> asyncAction, int maxDegreeOfParallelism = 10)
{
var semaphoreSlim = new SemaphoreSlim(maxDegreeOfParallelism);
var tcs = new TaskCompletionSource<object>();
var exceptions = new ConcurrentBag<Exception...
With Git, how do I turn off the “LF will be replaced by CRLF” warning
...ons, setting core.safecrlf to false suppresses the warning, but still auto converts.
– Danny Libin
Jan 21 '18 at 20:09
...
How can I detect if this dictionary key exists in C#?
...ystem.Collections.Generic;
using System.Collections;
namespace Main
{
internal partial class Dictionary<TKey, TValue> : System.Collections.Generic.Dictionary<TKey, TValue>
{
internal new virtual void Add(TKey key, TValue value)
{
if (!base.Contains...
Implement paging (skip / take) functionality with this query
...
New key words offset and fetch next (just following SQL standards) were introduced.
But I guess, that you are not using SQL Server 2012, right? In previous version it is a bit (little bit) difficult. Here is comparison and examples for all SQL server versions: here
So, this could work in SQL Se...
How do I pass values to the constructor on my wcf service?
...ut yuck, #regions even though it's the least severe case of the offence, I convert to explicit interface impl myself :P)
– Ruben Bartelink
Jun 10 '11 at 5:52
5
...
Get underlying NSData from UIImage
... a UIImage object with init(data: originalData), that originalData will be converted into raw data in some kind of internal format. These data can be retrieved later with
let rawData = myImage.cgImage?.dataProvider?.data as Data?
However because the rawData is raw, it is going to be even larger t...
How can I see the entire HTTP request that's being sent by my Python application?
...requests/0.12.1'}
Then r.request.data has the body as a mapping. You can convert this with urllib.urlencode if they prefer:
import urllib
b = r.request.data
encoded_body = urllib.urlencode(b)
depending on the type of the response the .data-attribute may be missing and a .body-attribute be there...