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@RequestBody and @ResponseBody annotations in Spring
...n> setup), Spring would convert the incoming JSON to a UserStats object from the post body (because you added the @RequestBody annotation) and it would serialize the returned object to JSON (because you added the @ResponseBody annotation). So the Browser / Client would see this JSON result:
{ "d...
How to change color of SVG image using CSS (jQuery SVG image replacement)?
...look for all IMG's with the class 'svg' and replace it with the inline SVG from the linked file. The massive advantage is that it allows you to use CSS to change the color of the SVG now, like so:
svg:hover path {
fill: red;
}
The jQuery code I wrote also ports across the original images ID a...
What's the opposite of chr() in Ruby?
...("C"))'
-e:1:in `printf': can't convert Array into Integer (TypeError)
from -e:1
$ ruby -e 'printf("0x%02X\n", "A".unpack("C")[0])'
0x41
$
I'm trying to write code that works on Ruby 1.8.1, 1.8.7 and 1.9.2.
Edited to pass C to unpack in uppercase, because unpack("c") gives me -1 where ord() ...
Avoid synchronized(this) in Java?
...
in order to have a deadlock we should perform a call from block synchronized by A to the block synchronized by B. daveb, you are wrong ...
– Andreas Bakurov
Jan 14 '09 at 12:33
...
Change default global installation directory for node.js modules in Windows?
...m Files\nodejs , where executable node.exe is. I'm able to launch node from the shell, as well as npm . I'd like new executables to be installed in C:\Program Files\nodejs as well, but it seems impossible to achieve.
...
What Are the Differences Between PSR-0 and PSR-4?
...beneficial. I'm currently creating a project in Laravel and trying to move from class map autoloading to namespacing. However, I can't seem to grasp what the actual difference is between PSR-0 and PSR-4.
...
undefined method `source_index' for Gem:Module (NoMethodError)
...st ran into this problem myself while trying to upgrade an older Rails app from REE 1.8.7 to 1.9.3-p385. Oddly, Ruby 1.9.3-p327 works just fine. What it came down to was ruby-1.9.3-p385 had installed RubyGems version 2.0.2 for me, and 1.9.3-p327 has RubyGems v1.8.23 installed.
Gem.source_index has ...
Resolving ambiguous overload on function pointer and std::function for a lambda using +
...tor + overload. "An implementation may define the closure type differently from what is described below provided this does not alter the observable behavior of the program other than by [...]" but IMO adding an operator does not change the closure type to something different from what is "described ...
How to convert an enum type variable to a string?
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@AdN That design is wrong. The mapping from enum to human-readable string shouldn't be implemented as an array of strings indexed by the enum value. Your experience (presumably) shows why. The mapping should be an explitiy array of (enum,string) pairs, so if you f...
Using a 'using alias = class' with generic types? [duplicate]
So sometimes I want to include only one class from a namespace rather than a whole namespace, like the example here I create a alias to that class with the using statement:
...