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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...
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...
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);...
Converting list to *args when calling function [duplicate]
...can use the * operator before an iterable to expand it within the function call. For example:
timeseries_list = [timeseries1 timeseries2 ...]
r = scikits.timeseries.lib.reportlib.Report(*timeseries_list)
(notice the * before timeseries_list)
From the python documentation:
If the syntax *expr...
How do I delay a function call for 5 seconds? [duplicate]
I want widget.Rotator.rotate() to be delayed 5 seconds between calls... how do I do this in jQuery... it seems like jQuery's delay() wouldn't work for this...
...
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...
Make outer div be automatically the same height as its floating content
...I dont want to use style='height: 200px in the div with the outerdiv id as I want it to be automatically the height of its content (eg, the floating div s).
...
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...
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(...
parseInt(null, 24) === 23… wait, what?
...From 15.1.2.2 parseInt (string , radix):
When the parseInt function is called,
the following steps are taken:
Let inputString be ToString(string).
Let S be a newly created substring of inputString consisting of the first
character that is not a
StrWhiteSpaceChar and all character...