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Python list directory, subdirectory, and files
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Unknown file type MIME?
...ou how to handle unknown types.
– Sampo Sarrala - codidact.org
Feb 22 '15 at 17:31
@SampoSarrala I read RFC-7231 a lit...
Predicate in Java
...ich uses Predicate in Java. I have never used Predicate . Can someone guide me to any tutorial or conceptual explanation of Predicate and its implementation in Java?
...
Inherit docstrings in Python class inheritance
...elf.get_no_inst(cls)
def get_with_inst(self, obj, cls):
overridden = getattr(super(cls, obj), self.name, None)
@wraps(self.mthd, assigned=('__name__','__module__'))
def f(*args, **kwargs):
return self.mthd(obj, *args, **kwargs)
return self.use_pare...
Why do we need argc while there is always a null at the end of argv?
...f argc shall be nonnegative.
argv[argc] shall be a null
pointer.
Providing argc therefore isn't vital but is still useful. Amongst other things, it allows for quick checking that the correct number of arguments has been passed.
Edit: The question has been amended to include C++. n3337 draft...
Force to open “Save As…” popup open at text link click for PDF in HTML
...shouldn't even do this - it should be left up to the user/user agent to decide what do to with the content you provide. The user can always force their browser to download the file if they wish to.
If you still want to force the browser to download the file, modify the HTTP headers directly. Here's...
Groovy: what's the purpose of “def” in “def x = 0”?
... }
}
bar()
prints "error caught"
The "y" variable isn't in scope inside the function. "x" is in scope as groovy will check the bindings of the current script for the variable. As I said earlier, this is simply syntactic sugar to make quick and dirty scripts quicker to type out (often one li...
Python: Select subset from list based on index set
...this kind of selection is very powerful, especially when nested and/or multidimensional.
– Thomas Browne
May 25 '14 at 21:11
...
Why is rbindlist “better” than rbind?
...get in a muddle of rownames using do.call(rbind, list(...))
see
How to avoid renaming of rows when using rbind inside do.call?
Memory efficiency
In terms of memory rbindlist is implemented in C, so is memory efficient, it uses setattr to set attributes by reference
rbind.data.frame is implemen...
setTimeout / clearTimeout problems
...
You need to declare timer outside the function. Otherwise, you get a brand new variable on each function invocation.
var timer;
function endAndStartTimer() {
window.clearTimeout(timer);
//var millisecBeforeRedirect = 10000;
timer = window.setTimeo...