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LINQ equivalent of foreach for IEnumerable
...umerable<char> enumerable = new[] {'a', 'b', 'c'};
var sb = new StringBuilder();
enumerable
.ForEach(c => sb.Append("1"))
.ForEach(c => sb.Append("2"))
.ToList();
Assert.That(sb.ToString(), Is.EqualTo("121212"));
}
If you remove the ToList() in th...
File Upload ASP.NET MVC 3.0
... Another point is you can replace the controller and action names (strings) in the Html.BeginForm() call like so: Html.BeginForm(null, null, FormMethod.Post, new { enctype = "multipart/form-data" }). This is useful if it is a partial view that is called from multiple parent views (or similar...
List to array conversion to use ravel() function
... wanted a way to do this without using an extra module. First turn list to string, then append to an array:
dataset_list = ''.join(input_list)
dataset_array = []
for item in dataset_list.split(';'): # comma, or other
dataset_array.append(item)
...
How to get the text node of an element?
... possible iterations. Comparing two small numbers is better than comparing strings of various lengths (time and space considerations). The correct question to ask in this situation is "what kind / type of node do I have?", and not "what name do I have?" developer.mozilla.org/en-US/docs/Web/API/Node/...
Accessing an SQLite Database in Swift
...autoincrement, name text)", nil, nil, nil) != SQLITE_OK {
let errmsg = String(cString: sqlite3_errmsg(db)!)
print("error creating table: \(errmsg)")
}
Use sqlite3_prepare_v2 to prepare SQL with ? placeholder to which we'll bind value.
var statement: OpaquePointer?
if sqlite3_prepare_v2(db...
Using Linq to get the last N elements of a collection?
...d as an extension method, you aren't required to use it that way:
List<string> mystring = new List<string>() { "one", "two", "three" };
mystring = Enumerable.Reverse(mystring).Take(2).Reverse().ToList();
share...
Why use the INCLUDE clause when creating an index?
...erts/deletes require the index to be updated/sorted anyway and thus little extra overhead is associated with storing off a few extra columns while already updating the index. The overhead is the extra memory and CPU used to store redundant info on the index.
If the columns you consider to add as in...
SparseArray vs HashMap
...his is a supplemental answer for that.
Create a SparseArray
SparseArray<String> sparseArray = new SparseArray<>();
A SparseArray maps integers to some Object, so you could replace String in the example above with any other Object. If you are mapping integers to integers then use SparseI...
What is a “callback” in C and how are they implemented?
...dlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include "../../common_typedef.h"
typedef void (*call_back) (S32, S32);
void test_call_back(S32 a, S32 b)
{
printf("In call back function, a:%d \t b:%d \n", a, b);
}
void call_callback_func(call_back back)...
Using Razor within JavaScript
... var description = '@(Model.Description)';
var contentString = '<h3>' + title + '</h3>' + '<p>' + description + '</p>'
var infowindow = new google.maps.InfoWindow({
content: contentString
});
var marke...