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Bash empty array expansion with `set -u`
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The only safe idiom is ${arr[@]+"${arr[@]}"}
This is already the recommendation in ikegami's an...
Format decimal for percentage values?
...se the P format string. This will vary by culture:
String.Format("Value: {0:P2}.", 0.8526) // formats as 85.26 % (varies by culture)
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ViewPager with previous and next page boundaries
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Quoting ...
Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
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170
The purpose of the activation function is to introduce non-linearity into the network
in turn, ...
Emulating a do-while loop in Bash
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answered May 10 '13 at 19:59
jm666jm666
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swift case falling through
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370
Yes. You can do so as follows:
var testVal = "hello"
var result = 0
switch testVal {
case "one...
How to get correct timestamp in C#
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Your mistake is using new DateTime(), which returns January 1, 0001 at 00:00:00.000 instead of current date and time. The correct syntax to get current date and time is DateTime.Now, so change this:
String timeStamp = GetTimestamp(new DateTime());
to this:
String timeStamp = GetTimes...
How to determine if a number is a prime with regex?
...lly, is there zero or one character-- or, per what I mentioned above, n == 0 || n == 1. If we have the match, then return the negation of that. This corresponds with the fact that zero and one are NOT prime.
(..+?)\\1+
The second part of the regex is a little trickier, relying on groups and backr...
Fast Linux File Count for a large number of files
...in a particular directory when there are a very large number of files ( > 100,000).
18 Answers
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Regex to remove all (non numeric OR period)
I need for text like "joe ($3,004.50)" to be filtered down to 3004.50 but am terrible at regex and can't find a suitable solution. So only numbers and periods should stay - everything else filtered. I use C# and VS.net 2008 framework 3.5
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