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How do I use itertools.groupby()?
...eturns iterators.
Here's an example of that, using clearer variable names:
from itertools import groupby
things = [("animal", "bear"), ("animal", "duck"), ("plant", "cactus"), ("vehicle", "speed boat"), ("vehicle", "school bus")]
for key, group in groupby(things, lambda x: x[0]):
for thing in ...
How to create JSON string in C#
...lizer class, check this article to build an useful extension method.
Code from article:
namespace ExtensionMethods
{
public static class JSONHelper
{
public static string ToJSON(this object obj)
{
JavaScriptSerializer serializer = new JavaScriptSerializer();
...
visual studio not remembering open documents & startup project
...devenv.exe that isn't quitting properly? Do you run the Solution Navigator from Productivity Power Tools and could it be futzing with your settings? Basically I have no more ideas, sorry :-)
– Dan F
Jul 16 '11 at 21:06
...
knitr Markdown highlighting in Emacs?
...ter markdown.el. Besides, if all you want is to just switch the ESS engine from Sweave to knitr (without highlighting!), there is no need to go through all the complication of this article, just add (setq ess-swv-processor 'knitr) in you init file.
– antonio
De...
When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s
... to use any technology in conjunction with another, so just to be complete from my experience MongoDB and MySQL work fine together as long as they aren't on the same machine
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Spring MVC: Complex object as GET @RequestParam
...
I will add some short example from me.
The DTO class:
public class SearchDTO {
private Long id[];
public Long[] getId() {
return id;
}
public void setId(Long[] id) {
this.id = id;
}
// reflection toString from a...
Android Fragment onClick button Method
...you should design for reuse and
avoid directly manipulating one fragment from another fragment.
A possible workaround would be to do something like this in your MainActivity:
Fragment someFragment;
...onCreate etc instantiating your fragments
public void myClickMethod(View v){
someFra...
RESTful Authentication
...ns instead of DB persistence).
For instance, here is a generic URI sample from the link above:
GET /object?apiKey=Qwerty2010
should be transmitted as such:
GET /object?timestamp=1261496500&apiKey=Qwerty2010&signature=abcdef0123456789
The string being signed is /object?apikey=Qwerty201...
Can you help me understand this? “Common REST Mistakes: Sessions are irrelevant”
...ld be then passed along with
subsequent requests? Does that make
sense from a REST point of view, or is
that missing the point?
This would not be RESTful since it carries state but it is however quite common since it's a convenience for users; a user does not have to login each time.
What...
How to specify an area name in an action link?
I have a shared master page which I am using from 2 different areas in my mvc 2 app. The master page has an action link which currently specifies the controller and action, but of course the link doesn't work if I'm in the wrong area. I see no overload for actionlink that takes an area parameter, ...