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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...
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...
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)
...
wkhtmltopdf: cannot connect to X server
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21 Answers
21
Active
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Is a Python list guaranteed to have its elements stay in the order they are inserted in?
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492
Yes, the order of elements in a python list is persistent.
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Remove specific commit
...d like this:
$ cat >myfile <<EOF
line 1
junk
junk
junk
junk
line 2
junk
junk
junk
junk
line 3
EOF
$ git add myfile
$ git commit -m "initial check-in"
1 files changed, 11 insertions(+), 0 deletions(-)
create mode 100644 myfile
$ perl -p -i -e 's/line 2/this is the second line/;' myfile
$...
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...
Should methods in a Java interface be declared with or without a public access modifier?
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12 Answers
12
Active
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Finding local IP addresses using Python's stdlib
How can I find local IP addresses (i.e. 192.168.x.x or 10.0.x.x) in Python platform independently and using only the standard library?
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