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Convert array of integers to comma-separated string
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Pre .NET 4 string.Join(",", Array.ConvertAll(arr, i => i.ToString()))
– TPAKTOPA
Dec 12 '14 at 14:06
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How to display a specific user's commits in svn log?
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You can write a script to parse it, for example, in Python 2.6:
import sys
from xml.etree.ElementTree import iterparse, dump
author = sys.argv[1]
iparse = iterparse(sys.stdin, ['start', 'end'])
for event, elem in iparse:
if event == 'start' and elem.tag == 'log':
logNode = elem
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Is there a difference between copy initialization and direct initialization?
...opy initialization constructs an implicit conversion sequence: It tries to convert x to an object of type T. (It then may copy over that object into the to-initialized object, so a copy constructor is needed too - but this is not important below)
As you see, copy initialization is in some way a pa...
How to update only one field using Entity Framework?
...wn code, extended to handle also (Linq) Expressions of type ExpressionType.Convert. This was necessary in my case, for example with Guid and other object properties. Those were 'wrapped' in a Convert() and therefore not handled by System.Web.Mvc.ExpressionHelper.GetExpressionText.
public int Update...
How can I convert a Unix timestamp to DateTime and vice versa?
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Did you just miss the "vice versa"? How do we convert a DateTime to a timestamp?
– Jonny
Dec 8 '14 at 8:31
42
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Get exception description and stack trace which caused an exception, all as a string
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It is better than sys.exc_info() which is not good OO style and use global variable.
– WeiChing 林煒清
May 20 '16 at 4:00
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Read data from SqlDataReader
... is a string, you can use .ToString(). If it is another type, you need to convert it using System.Convert.
SqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{
string column = rdr["ColumnName"].ToString();
int columnValue = Convert.ToInt32(rdr["ColumnName"]);
}
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MySQL integer field is returned as string in PHP
...ou select data from a MySQL database using PHP the datatype will always be converted to a string. You can convert it back to an integer using the following code:
$id = (int) $row['userid'];
Or by using the function intval():
$id = intval($row['userid']);
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How can I convert a datetime object to milliseconds since epoch (unix time) in Python?
I have a Python datetime object that I want to convert to unix time, or seconds/milliseconds since the 1970 epoch.
13 Ans...
Threads vs Processes in Linux
...sses and threads -- everything is simply a runnable task. *
On Linux, the system call clone clones a task, with a configurable level of sharing, among which are:
CLONE_FILES: share the same file descriptor table (instead of creating a copy)
CLONE_PARENT: don't set up a parent-child relationship b...