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How do I remove duplicates from a C# array?
...
You could possibly use a LINQ query to do this:
int[] s = { 1, 2, 3, 3, 4};
int[] q = s.Distinct().ToArray();
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How do I toggle an element's class in pure JavaScript?
...Name){
return;
}
var classString = element.className, nameIndex = classString.indexOf(className);
if (nameIndex == -1) {
classString += ' ' + className;
}
else {
classString = classString.substr(0, nameIndex) + classString.substr(nameIndex+className.lengt...
How to Get True Size of MySQL Database?
... MySQL forum:
SELECT table_schema "database name",
sum( data_length + index_length ) / 1024 / 1024 "database size in MB",
sum( data_free )/ 1024 / 1024 "free space in MB"
FROM information_schema.TABLES
GROUP BY table_schema;
Or in a single line for easier copy-pasting:
SELECT table_sche...
How fast is D compared to C++?
...ting average
Removed the size_type and replaced appropriately with the new index_type alias
...thus resulting in scalar2.cpp (pastebin):
import std.stdio : writeln;
import std.datetime : Clock, Duration;
import std.array : uninitializedArray;
import std.random : uniform;
alia...
PhoneGap: Detect if running on desktop browser
...n a browser or not, here is another great option:
var app = document.URL.indexOf( 'http://' ) === -1 && document.URL.indexOf( 'https://' ) === -1;
if ( app ) {
// PhoneGap application
} else {
// Web page
}
as seen here: Detect between a mobile browser or a PhoneGap application...
Should each and every table have a primary key?
...s, most RDBMS engines will benefit from including these fields in a unique index.
And since any primary key involves creating a unique index, you should declare it and get both logical consistency and performance.
See this article in my blog for why you should always create a unique index on uniqu...
Using Ajax.BeginForm with ASP.NET MVC 3 Razor
...oller:
public class HomeController : Controller
{
public ActionResult Index()
{
return View(new MyViewModel());
}
[HttpPost]
public ActionResult Index(MyViewModel model)
{
return Content("Thanks", "text/html");
}
}
View:
@model AppName.Models.MyViewMo...
Creating a zero-filled pandas data frame
...
You can try this:
d = pd.DataFrame(0, index=np.arange(len(data)), columns=feature_list)
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Pandas dataframe get first row of each group
...h
If you need id as column:
>>> df.groupby('id').first().reset_index()
id value
0 1 first
1 2 first
2 3 first
3 4 second
4 5 first
5 6 first
6 7 fourth
To get n first records, you can use head():
>>> df.groupby('id').head(2).reset_index(drop=Tru...
Laravel - Route::resource vs Route::controller
... Action Route Name
GET /users index users.index
GET /users/create create users.create
POST /users store users.store
GET /users/{user} show users.show
GET /user...