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Performance surprise with “as” and nullable types
...a few machine code instructions. The cast is also easy, the JIT compiler knows the location of the value bits in the object and uses them directly. No copying or conversion occurs, all machine code is inline and takes but about a dozen instructions. This needed to be really efficient back in .NET...
Are duplicate keys allowed in the definition of binary search trees?
...se problems. Imagine your tree rule is this:
left < root <= right
Now imagine a simple tree whose root is 5, left child is nil, and right child is 5. If you do a left rotation on the root you end up with a 5 in the left child and a 5 in the root with the right child being nil. Now somethi...
Capture Image from Camera and Display in Activity
...
@Harsha M V This is a known bug on Samsung Galaxy. Please see this answer stackoverflow.com/questions/7031374/…
– Oh Danny Boy
Sep 29 '11 at 19:16
...
Case insensitive 'in'
...r()
except:
pass
return self.__s == other
Now, if CaseInsensitively('MICHAEL89') in whatever: should behave as required (whether the right-hand side is a list, dict, or set). (It may require more effort to achieve similar results for string inclusion, avoid warnings...
How to get started with developing Internet Explorer extensions?
...ere have experience with/in developing IE extensions that can share their knowledge? This would include code samples, or links to good ones, or documentation on the process, or anything.
...
Can someone give an example of cosine similarity, in a very simple, graphical way?
...e than Linda loves me
Jane likes me more than Julie loves me
We want to know how similar these texts are, purely in terms of word counts (and ignoring word order). We begin by making a list of the words from both texts:
me Julie loves Linda than more likes Jane
Now we count the number of times ...
How can I test if a letter in a string is uppercase or lowercase using JavaScript?
...test it if upper or lower case
example
var strings = 'this iS a TeSt 523 Now!';
var i=0;
var character='';
while (i <= strings.length){
character = strings.charAt(i);
if (!isNaN(character * 1)){
alert('character is numeric');
}else{
if (character == character.toUpper...
How to determine if a process runs inside lxc/Docker?
... if a process (script) runs inside an lxc container (~ Docker runtime)? I know that some programs are able to detect whether they run inside a virtual machine, is something similar available for lxc/docker?
...
What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?
...introduction to quoting in Bash.
Arrays ($var vs. $var[@] vs. ${var[@]})
Now for your array. According to the bash manual:
Referencing an array variable without a subscript is equivalent to referencing the array with a subscript of 0.
In other words, if you don't supply an index with [], you...
Why are C# interface methods not declared abstract or virtual?
...nce void AliasedMethod() cil managed
{
.override MyInterface::Method
}
Now, consider this weird case:
interface MyInterface {
void Method();
}
class Base {
public void Method();
}
class Derived : Base, MyInterface { }
If Base and Derived are declared in the same assembly, the compiler wil...