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Removing duplicates in lists
... whatever you are trying to do:
>>> t = [1, 2, 3, 1, 2, 5, 6, 7, 8]
>>> t
[1, 2, 3, 1, 2, 5, 6, 7, 8]
>>> list(set(t))
[1, 2, 3, 5, 6, 7, 8]
>>> s = [1, 2, 3]
>>> list(set(t) - set(s))
[8, 5, 6, 7]
As you can see from the example result, the original o...
Functional style of Java 8's Optional.ifPresent and if-not-Present?
In Java 8, I want to do something to an Optional object if it is present, and do another thing if it is not present.
12 A...
Python None comparison: should I use “is” or ==?
... |
edited Oct 27 '14 at 18:55
answered Jan 9 '13 at 22:08
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How to install a specific version of a ruby gem?
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1182
Use the -v flag:
$ gem install fog -v 1.8
...
What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
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answered Feb 8 '11 at 9:29
trojanfoetrojanfoe
114k1818 gold badges188188 silver badges226226 bronze badges
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How to get multiple counts with one SQL query?
...01
Chad
6831010 silver badges2626 bronze badges
answered Oct 8 '12 at 21:07
Taryn♦Taryn
...
Predicate in Java
... like this:
List<Integer> numbers = Arrays.asList(1,2,3,4,5,6,7,8,9,10);
for (int number : numbers) {
if (isEven(number)) {
process(number);
}
}
With Predicate, the if test is abstracted out as a type. This allows it to interoperate with the rest of t...
Why are `private val` and `private final val` different?
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82
So, this is just a guess, but it was a perennial annoyance in Java that final static variables ...
Equivalent VB keyword for 'break'
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182
In both Visual Basic 6.0 and VB.NET you would use:
Exit For to break from For loop
Wend to br...