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How to find the last field using 'cut'
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You could try something like this:
echo 'maps.google.com' | rev | cut -d'.' -f 1 | rev
Explanation
rev reverses "maps.google.com" to be moc.elgoog.spam
cut uses dot (ie '.') as the delimiter, and chooses the first field, which is moc
la...
How to make an enum conform to a protocol in Swift?
Swift documentation says that classes , structs , and enums can all conform to protocols, and I can get to a point where they all conform. But I can't get the enum to behave quite like the class and struct examples:
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How do you test to see if a double is equal to NaN?
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Use the static Double.isNaN(double) method, or your Double's .isNaN() method.
// 1. static method
if (Double.isNaN(doubleValue)) {
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}
// 2. object's method
if (doubleObject.isNaN()) {
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}
Simply doing:
if (var == Double.NaN) {
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}
is no...
Display the current time and date in an Android application
How do I display the current date and time in an Android application?
23 Answers
23
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jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
... web.xml , but when I start my Tomcat 7 server I am getting the following message:
12 Answers
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What's the foolproof way to tell which version(s) of .NET are installed on a production Windows Serv
This question is not so much programming related as it is deployment related.
19 Answers
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Get login username in java
How can I get the username/login name in Java?
8 Answers
8
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JavaScript equivalent of PHP’s die
Is there something like "die" in JavaScript? I've tried with "break", but doesn't work :)
14 Answers
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Best way to split string into lines
... why do you explicitly tell C# to throw them away? (StringSplitOptions parameter) – use StringSplitOptions.None instead.
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Pandas: Setting no. of max rows
I have a problem viewing the following DataFrame :
7 Answers
7
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