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How to get the text node of an element?
...e.TEXT_NODE (numeric comparison is faster but curNode.nodeType == 3 is not readable - what node has number 3?)
– mikep
Aug 8 '17 at 10:31
...
Explaining Python's '__enter__' and '__exit__'
...se to user like in with open(abc.txt, 'r') as fin: content = fin.read()
– ViFI
Jul 11 '16 at 10:37
...
What is the difference between AF_INET and PF_INET in socket programming?
..._INET refers to anything in the protocol, usually sockets/ports.
Consider reading the man pages for socket(2) and bind(2). For the sin_addr field, just do something like the following to set it:
struct sockaddr_in addr;
inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr);
...
How to use concerns in Rails 4
...
I have been reading about using model concerns to skin-nize fat models as well as DRY up your model codes. Here is an explanation with examples:
1) DRYing up model codes
Consider a Article model, a Event model and a Comment model. An a...
Memoization in Haskell?
...[0..].) It works searches the tree by treating n as a string of bits, and reading through the bits in reverse. If the bit is 1, it takes the right-hand branch. If the bit is 0, it takes the left-hand branch. It stops when it reaches the last bit (which must be a 1).
index' (Tree l m r) 1 = m
in...
How to pass an array into a SQL Server stored procedure
...);
GO
CREATE PROCEDURE dbo.DoSomethingWithEmployees
@List AS dbo.IDList READONLY
AS
BEGIN
SET NOCOUNT ON;
SELECT ID FROM @List;
END
GO
Now in your C# code:
// Obtain your list of ids to send, this is just an example call to a helper utility function
int[] employeeIds = GetEmployeeIds();
...
Best way to specify whitespace in a String.Split operation
...f they are passed to the Char.IsWhiteSpace method.
Always, always, always read the documentation!
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How to get my IP address programmatically on iOS/macOS?
...LOOPBACK) */ ) {
continue; // deeply nested code harder to read
}
const struct sockaddr_in *addr = (const struct sockaddr_in*)interface->ifa_addr;
char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ];
if(addr && (addr->s...
What is more efficient? Using pow to square or just multiply it with itself?
...ut of the loop, as I thought it would. I guess since errno is a global, thread safety requires that it call pow to possibly set errno multiple times... exp=1 and exp=2 are fast because the pow call is hoisted out of the loop with just -O3.. (with -ffast-math, it does the sum-of-8 outside the loop, ...
source of historical stock data [closed]
...() + "/quotes.csv");
File.Delete("quotes.csv");
Thread.Sleep(10000); // 10 seconds
}
}
catch (Exception exc)
{
Console.WriteLine(exc.ToString());
Console.ReadKey();
}
}
Database:
On the database side I use an OleDb connection to the ...