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Preferred way to create a Scala list
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answered Aug 6 '09 at 20:56
Daniel C. SobralDaniel C. Sobral
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Dictionaries and default values
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323
Like this:
host = connectionDetails.get('host', someDefaultValue)
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Linking R and Julia?
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42
The RJulia R package looks quite good now from R. R CMD check runs without warnings or errors...
.gitignore exclude folder but include specific subfolder
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edited Aug 24 '18 at 21:24
fawaad
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answered Apr 4 '1...
How to debug stream().map(…) with lambda expressions?
...he elements of the stream:
List<Integer> naturals = Arrays.asList(1,2,3,4,5,6,7,8,9,10,11,12,13);
naturals.stream()
.map(n -> n * 2)
.peek(System.out::println)
.collect(Collectors.toList());
UPDATE:
I think you're getting confused because map is an intermediate operation - i...
wkhtmltopdf: cannot connect to X server
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21 Answers
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In C++, is it still bad practice to return a vector from a function?
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edited Nov 12 '14 at 17:16
Mgetz
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a...
How can I check for Python version in a program that uses new language features?
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112
You can test using eval:
try:
eval("1 if True else 2")
except SyntaxError:
# doesn't have t...
How do you add CSS with Javascript?
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You can also do this using DOM Level 2 CSS interfaces (MDN):
var sheet = window.document.styleSheets[0];
sheet.insertRule('strong { color: red; }', sheet.cssRules.length);
...on all but (naturally) IE8 and prior, which uses its own marginally-different wordin...
Should methods in a Java interface be declared with or without a public access modifier?
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12 Answers
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