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How to wrap async function calls into a sync function in Node.js or Javascript?
...ppose you maintain a library that exposes a function getData . Your users call it to get actual data:
var output = getData();
Under the hood data is saved in a file so you implemented getData using Node.js built-in fs.readFileSync . It's obvious both getData and fs.readFileSync are sync...
Use of Finalize/Dispose method in C#
...{
public void Dispose()
{
// get rid of managed resources, call Dispose on member variables...
}
}
When implementing an unsealed class, do it like this:
public class B : IDisposable
{
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);...
Mocking vs. Spying in mocking frameworks
...eate spies of real objects. When you use the spy then the real methods are called (unless a method was stubbed).
Real spies should be used carefully and occasionally, for example when dealing with legacy code.
When in doubt, use mocks.
...
Get list of passed arguments in Windows batch script (.bat)
... name itself). You might also find these useful:
%0 - the command used to call the batch file (could be foo, ..\foo, c:\bats\foo.bat, etc.)
%1 is the first command line parameter,
%2 is the second command line parameter,
and so on till %9 (and SHIFT can be used for those after the 9th).
%~nx0 - t...
Python decorators in classes
... return magic
@_decorator
def bar( self ) :
print "normal call"
test = Test()
test.bar()
This avoids the call to self to access the decorator and leaves it hidden in the class namespace as a regular method.
>>> import stackoverflow
>>> test = stackoverflow.Tes...
What is the difference between :first-child and :first-of-type?
... finally understand. If I wanted the first div under a div element I would call div:first-of-type, because there could be non-div elements above it. It was a little confusing, but I understand now. This is an excellent and very informative post. Thank you and your help is greatly appreciated.
...
static function in C
...; /* ok, f2 is in the same translation unit */
/* (basically same .c file) as f1 */
}
int f2(int foo) {
return 42 + foo;
}
main.c:
int f1(int); /* prototype */
int f2(int); /* prototype */
int main(void) {
f1(10); /* ok, f1 is visible to the linker */
f2(...
How to call a method after a delay in Android
I want to be able to call the following method after a specified delay.
In objective c there was something like:
31 Answer...
Nested or Inner Class in PHP
...
There are several compelling reasons for using them:
It is a way of logically grouping classes that are only used in one place.
If a class is useful to only one other class, then it is logical to
relate and embed it in that class and keep the two together.
It increases encapsulation.
...
Ignore mouse interaction on overlay image
...nd-image:url(../img/reflection.png);
background-repeat:no-repeat;
width: 195px;
pointer-events:none;
}
pointer-events attribute works pretty good and is simple.
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