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How to overload __init__ method based on argument type?
...to use classmethods. For instance:
>>> class MyData:
... def __init__(self, data):
... "Initialize MyData from a sequence"
... self.data = data
...
... @classmethod
... def fromfilename(cls, filename):
... "Initialize MyData from a file"
... ...
RSS Feeds in ASP.NET MVC
...stem.Web;
using System.Web.Mvc;
using System.Xml;
namespace MVC3JavaScript_3_2012.Rss
{
public class RssFeed : FileResult
{
private Uri _currentUrl;
private readonly string _title;
private readonly string _description;
private readonly List<SyndicationItem...
multi-step registration process issues in asp.net mvc (split viewmodels, single model)
... send on each request.
This model binder will be registered in Application_Start:
ModelBinders.Binders.Add(typeof(IStepViewModel), new StepViewModelBinder());
The last missing bit of the puzzle are the views. Here's the main ~/Views/Wizard/Index.cshtml view:
@using Microsoft.Web.Mvc
@model Wiza...
Sort a list by multiple attributes?
... how, you can wrap your criteria (functions) in parenthesis:
s = sorted(my_list, key=lambda i: ( criteria_1(i), criteria_2(i) ), reverse=True)
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How do you round to 1 decimal place in Javascript?
...)
You might want to create a function for this:
function roundedToFixed(_float, _digits){
var rounded = Math.pow(10, _digits);
return (Math.round(_float * rounded) / rounded).toFixed(_digits);
}
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...
Hidden Features of PHP? [closed]
...
I agree. Being able to type www.php.net/function_name and getting a reference most of the time is great.
– Allain Lalonde
Sep 14 '08 at 17:46
1
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Multiple Models in a single django ModelForm?
...
But how? Usually a FormView only has a single form_class assigned to it.
– erikbwork
Oct 7 '16 at 17:42
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How does the @property decorator work in Python?
...is just syntactic sugar; the syntax:
@property
def foo(self): return self._foo
really means the same thing as
def foo(self): return self._foo
foo = property(foo)
so foo the function is replaced by property(foo), which we saw above is a special object. Then when you use @foo.setter(), what you ...
What does -D_XOPEN_SOURCE do/mean?
... the gcc man page, but did not find this specific option. I did find XOPEN_SOURCE , but there was little explanation of what it does.
...
Shards and replicas in Elasticsearch
... elasticsearch will create 5 primary shards that will contain your data:
____ ____ ____ ____ ____
| 1 | | 2 | | 3 | | 4 | | 5 |
|____| |____| |____| |____| |____|
Every time you index a document, elasticsearch will decide which primary shard is supposed to hold that docu...