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How do I provide custom cast support for my class?
...ou want users to have to cast it or whether you want it to happen automagically. Generally, one direction will always work, that's where you use implicit, and the other direction can sometimes fail, that's where you use explicit.
The syntax is like this:
public static implicit operator dbInt64(Byt...
Finding quaternion representing the rotation from one vector to another
...
Be aware that this does not handle the case of parallel vectors (both in the same direction or pointing in opposite directions). crossproduct will not be valid in these cases, so you first need to check dot(v1, v2) > 0.999999 and dot(v1, v2) < -0.999999, respectively, ...
Where to put view-specific javascript files in an ASP.NET MVC application?
... .js file next to your view:
You can access it directly:
http://yourdomain.com/YourController/Index.js
Below is the source:
namespace JavaScriptViews {
public class JavaScriptActionDescriptor : ActionDescriptor
{
private string actionName;
private ControllerDescrip...
Asynchronous method call in Python?
I was wondering if there's any library for asynchronous method calls in Python . It would be great if you could do something like
...
How to avoid annoying error “declared and not used”
...s it easier to read code written by other people (you are always sure that all declared variables will be used), and avoid some possible dead code.
But, if you really want to skip this error, you can use the blank identifier (_) :
package main
import (
"fmt" // imported and not used: "fmt"
)
...
How to pretty print nested dictionaries?
...
This is cool, but doesn't print all dictionaries well. print json.dumps(myObject.__dict__, sort_keys=True, indent=4) #TypeError: <object at 0x0000000002E6A748> is not JSON serializable
– tponthieux
Feb 8 '12 at 2...
How to normalize an array in NumPy?
I would like to have the norm of one NumPy array. More specifically, I am looking for an equivalent version of this function
...
Python: Why is functools.partial necessary?
...rticular) appear to like lambda just fine – I say "most", definitely not all, because Guido and I assuredly are among those "familiar with" (etc) yet think of lambda as an eyesore anomaly in Python...
He was repentant of ever having accepted it into Python whereas planned to remove it from Python ...
C++ preprocessor __VA_ARGS__ number of arguments
...
This is actually compiler dependent, and not supported by any standard.
Here however you have a macro implementation that does the count:
#define PP_NARG(...) \
PP_NARG_(__VA_ARGS__,PP_RSEQ_N())
#define PP_NARG_(...) \
...
HTML Entity Decode [duplicate]
...de creates an empty (detached from DOM) div and sets it's innerHTML and finally retrieved back as normal text. It's not surrounding it with a DIV, but putting it in a div. I putting some emphasis over this since it's crucial to understand how jQuery works.
– Christian
...