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What is Ruby's double-colon `::`?
...in modules, or class-level items in classes. For example, say you had this setup:
module SomeModule
module InnerModule
class MyClass
CONSTANT = 4
end
end
end
You could access CONSTANT from outside the module as SomeModule::InnerModule::MyClass::CONSTANT.
It do...
Stack, Static, and Heap in C++
...favor of tightly controlling the allocation process by using buffers of preset sizes for all allocations.)
Stack variables are useful for when you know that as long as the function is in scope (on the stack somewhere), you will want the variables to remain. Stacks are nice for variables that you ne...
How to fix Error: “Could not find schema information for the attribute/element” by creating schema
... path to the VS supplied XSD. (@pressacco's answer) 3. Or: change project settings DotNet version and back. Repeat twice. (reexmonkey's answer). May cause problems with package updates.
– pashute
Apr 29 '15 at 10:02
...
Find object in list that has attribute equal to some value (that meets any condition)
...ilter your to be filtered elements.
Functional programming ftw.
####### Set Up #######
class X:
def __init__(self, val):
self.val = val
elem = 5
my_unfiltered_list = [X(1), X(2), X(3), X(4), X(5), X(5), X(6)]
####### Set Up #######
### Filter one liner ### filter(lambda x: condit...
How to extract the first two characters of a string in shell scripting?
...ah.blah.blah"
pax> short="${long:0:2}" ; echo "${short}"
US
This will set short to be the first two characters of long. If long is shorter than two characters, short will be identical to it.
This in-shell method is usually better if you're going to be doing it a lot (like 50,000 times per repo...
Difference between static and shared libraries?
...segment/large-pointer perf. penalties), but on many architectures/compiler-settings the dynamic linker patches the call to create the exact same calling machine opcodes.
– Tony Delroy
Feb 21 '14 at 6:36
...
Copy / Put text on the clipboard with FireFox, Safari and Chrome
..., Ctrl+V events and transfer focus to a hidden TextArea control and either set its contents to desired new clipboard contents for copy or read its contents after the event had finished for paste.
see also Is it possible to read the clipboard in Firefox, Safari and Chrome using Javascript?
...
What is the best practice for “Copy Local” and with project references?
... into a performance problem as well. The solution was three fold:
Always set the Copy Local property to false and enforce this via a custom msbuild step
Set the output directory for each project to the same directory (preferably relative to $(SolutionDir)
The default cs targets that get shipped wi...
Why is Thread.Sleep so harmful
...O 1 - wait for async task completion: I agree that WaitHandle/Auto|ManualResetEvent should be used in scenario where a thread is waiting for task on another thread to complete.
SCENARIO 2 - timing while loop: However, as a crude timing mechanism (while+Thread.Sleep) is perfectly fine for 99% of app...
XmlSerializer: remove unnecessary xsi and xsd namespaces
...
public string Label
{
get { return this._label; }
set { this._label = value; }
}
private string _label;
// An element whose tag will be the same name as the property name.
// Also, this element will inherit the namespace of the enclosing type.
public int...