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Select 50 items from list at random to write to file
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I used this to easily create a test / train set for a machine learning project. Using random.choice(mylist,3) wouldn't create two disjoint sets as this did.
– Monica Heddneck
Jul 31 '17 at 23:38
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Disable a method in a ViewSet, django-rest-framework
...thod and call http_method_not_allowed(request, *args, **kwargs). I haven't tested this so I'm not sure if it works
– SunnySydeUp
Mar 31 '15 at 23:39
1
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What's wrong with nullable columns in composite primary keys?
...atch is that a constraint is not considered violated if the outcome of the test is UNKNOWN. This often makes it SEEM as if the comparison yields false, but it really doesn't.
– Erwin Smout
Feb 25 '15 at 14:06
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ASP.NET MVC Html.DropDownList SelectedValue
...s MVC 3 post does not work but it is a good start. I will fix it. I have tested this code and it works in MVC 3 Razor C# This code uses the ViewModel pattern to populate a property that returns a List<SelectListItem>.
The Model class
public class Product
{
public string Name { get; se...
What HTTP status response code should I use if the request is missing a required parameter?
...there's a set standard, but I would have used 400 Bad Request, which the latest HTTP spec (from 2014) documents as follows:
6.5.1. 400 Bad Request
The 400 (Bad Request) status code indicates that the server cannot or
will not process the request due to something that is perceived to b...
How to remove from a map while iterating it?
...ing pointed to by next_it or successors. A totally cleared list/map can be tested against as well.
– Larswad
Nov 21 '17 at 15:13
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How do I change the formatting of numbers on an axis with ggplot?
...things, it's easiest to add more gsub() directly after the format(), while testing what format() returns for your case in a separate console.
– semi-extrinsic
Sep 15 '15 at 10:15
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Fast ceiling of an integer division in C / C++
...Nathan Ernst's code and emit the same thing, but gcc didn't do that when I tested it. This might be because it would tie the compiled code to a single version of the standard library.
As a final note, none of this matters on a modern machine, except if you are in an extremely tight loop and all you...
C++ static virtual members?
...tic()
{
return "YourObject";
}
};
Let's add some code to test:
char* GetObjectClassName(Object* object)
{
return object->GetClassName();
}
int main()
{
MyObject myObject;
YourObject yourObject;
printf("%s\n", MyObject::GetClassNameStatic());
printf("%s\n",...
How to see if an NSString starts with a certain other string?
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Try this: if ([myString hasPrefix:@"http"]).
By the way, your test should be != NSNotFound instead of == NSNotFound. But say your URL is ftp://my_http_host.com/thing, it'll match but shouldn't.
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