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How can I check whether a option already exist in select by JQuery
...n there, instead of producing the 0 or 1 like the other does and having to convert it. I say both approaches are fine because you have to do 2 steps, either way. This seems more visible to the process, to me, and less prone to error by not judging the length of whitespace, for instance, like .leng...
Echo equivalent in PowerShell for script testing
...ut-String, because with any non-trivial object, you'll need to use that to convert the object to a display-able string before using any of those three Write-* cmdlets.
– Jaykul
Nov 2 '09 at 7:11
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Split an NSString to access one particular piece
...0]
Although note that it gives you an array of Substring. If you need to convert these back to ordinary strings, use map
let strings = "10/04/2011".split(separator: "/").map{ String($0) }
let firstBit = strings[0]
or
let firstBit = String(substrings[0])
...
How can I implode an array while skipping empty array items?
...:
If no callback is supplied, all entries of input equal to FALSE (see converting to boolean) will be removed.
implode('-', array_filter($array));
Obviously this will not work if you have 0 (or any other value that evaluates to false) in your array and you want to keep it. But then you can ...
C# static class constructor
...r is initialization of static member.
static class Employee1
{
static int EmpNo;
static Employee1()
{
EmpNo = 10;
// perform initialization here
}
public static void Add()
{
}
public static void Add1()
{
}
}
and static constructor get ca...
Extracting specific columns in numpy array
... instead an array containing the elements of the column you extracted.
To convert it to Matrix the reshape(M,1) method should be used on the resulting array.
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OrderBy descending in Lambda expression?
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Try this:
List<int> list = new List<int>();
list.Add(1);
list.Add(5);
list.Add(4);
list.Add(3);
list.Add(2);
foreach (var item in list.OrderByDescending(x => x))
{
Console.WriteLine(item);
}
...
Dynamic SELECT TOP @var In SQL Server
...and execute it with the exec command:
declare @sql nvarchar(200), @count int
set @count = 10
set @sql = N'select top ' + cast(@count as nvarchar(4)) + ' * from table'
exec (@sql)
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What is Delegate? [closed]
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I like to think of a delegate as "a pointer to a function". This goes back to C days, but the idea still holds.
The idea is that you need to be able to invoke a piece of code, but that piece of code you're going to invoke isn't known until runtime. So you us...
Understanding events and event handlers in C#
...tand the purpose of events, especially within the context of creating user interfaces. I think this is the prototype for creating an event:
...