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How do I create a random alpha-numeric string in C++?
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+100
Mehrdad Afshari's answer would do the trick, but I found it a bit too verbose for this simple task. Look-up tables can sometimes do w...
XML schema or DTD for logback.xml?
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edited Jul 4 '17 at 10:25
answered Dec 24 '12 at 20:37
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Return positions of a regex match() in Javascript?
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answered Feb 19 '10 at 10:49
GumboGumbo
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Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
... and I want to add two new columns to a dataframe df with n columns (n > 0).
These new columns result from the application of a function to one of the columns in the dataframe.
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Creating temporary files in bash
...voke mktemp something like
mydir=$(mktemp -d "${TMPDIR:-/tmp/}$(basename $0).XXXXXXXXXXXX")
which creates a temporary directory I can work in, and in which I can safely name the actual files something readable and useful.
mktemp is not standard, but it does exist on many platforms. The "X"s will...
Append TimeStamp to a File Name
...Time.Now.ToString("yyyyMMddHHmmssfff")
or string.Format
string.Format("{0:yyyy-MM-dd_HH-mm-ss-fff}", DateTime.Now);
or Interpolated Strings
$"{DateTime.Now:yyyy-MM-dd_HH-mm-ss-fff}"
There are following custom format specifiers y (year), M (month), d
(day), h (hour 12), H (hour 24), m (min...
ORA-01882: timezone region not found
... database. Just today I had this issue when using ojdbc6.jar (version 11.2.0.3.0) to connect to an Oracle 9.2.0.4.0 server. Replacing it with ojdbc6.jar version 11.1.0.7.0 solved the issue.
I also managed to make ojdbc6.jar version 11.2.0.3.0 connect without error, by adding oracle.jdbc.timezoneAsR...
How to get first N elements of a list in C#?
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answered Nov 26 '08 at 7:28
Matt HamiltonMatt Hamilton
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Checking if array is multidimensional or not?
...anywhere. If it has to be in the first item, you'd just do
is_array($arr[0]);
But, the most efficient general way I could find is to use a foreach loop on the array, shortcircuiting whenever a hit is found (at least the implicit loop is better than the straight for()):
$ more multi.php
<?php...
Is there a way to check if int is legal enum in C#?
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280
Check out Enum.IsDefined
Usage:
if(Enum.IsDefined(typeof(MyEnum), value))
MyEnum a = (MyEn...