大约有 43,000 项符合查询结果（耗时：0.0293秒） [XML]
Empty arrays seem to equal true and false at the same time
...
@Devy all objects in JavaScript are truthy, so the convert any objects to Boolean is true. See 2ality.com/2013/08/objects-truthy.html
– Thomson
Oct 17 '16 at 21:27
...
Java: when to use static methods
... definitely be static.
So in a class Car you might have a method:
double convertMpgToKpl(double mpg)
...which would be static, because one might want to know what 35mpg converts to, even if nobody has ever built a Car. But this method (which sets the efficiency of one particular Car):
void set...
How do I invert BooleanToVisibilityConverter?
I'm using a BooleanToVisibilityConverter in WPF to bind the Visibility property of a control to a Boolean . This works fine, but I'd like one of the controls to hide if the boolean is true , and show if it's false .
...
Any reason why scala does not explicitly support dependent types?
...plicated that it is hard to see the laws, the value
level expressions are converted (automatically but still) to type level things and
you need to trust that conversion as well.
There is room for error in all of this which kinda defies the purpose of compiler acting as
a proof assistant.
(EDITE...
C compiler for Windows? [closed]
... so much of an issue. Also, I've never used them but there are file format converter tools.
– BCS
Apr 23 '09 at 17:52
add a comment
|
...
JavaScriptSerializer - JSON serialization of enum as string
...enum as a string in my json without having to create a custom JavaScriptConverter ? Perhaps there's an attribute that I could decorate the enum definition, or object property, with?
...
INSERT with SELECT
...RACTER SET utf8) COLLATE utf8_bin;
This conversion (CAST() is synonym of CONVERT() ) is very useful if your tables have different character sets on the same table column (which can potentially lead to data loss if not handled properly).
...
Convert PEM to PPK file format
Is there a way to convert PEM files to PPK files? (you may guess that Amazon EC2 gives me a PEM file, and I need to use the PPK format for SSH connectivity).
...
Is there a recommended way to return an image using ASP.NET Web API
...a System.Drawing.Image, unless you also add a formatter which knows how to convert that into the appropriate bytes doesn't serialize itself as the image bytes as you'd expect.
One possible solution is to return an HttpResponseMessage with the image stored in its content (as shown below). Remember t...
Convert to/from DateTime and Time in Ruby
How do you convert between a DateTime and a Time object in Ruby?
6 Answers
6
...