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Python “raise from” usage
What's the difference between raise and raise from in Python?
1 Answer
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Can you split a stream into two streams?
...ou think it is ... stream.boxed().collect(...);! It will do as advertised: convert the primitive IntStream to the boxed Stream<Integer> version.
– YoYo
May 8 '15 at 3:57
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How to negate the whole regex?
...d Lookbehind Zero-Width Assertions
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See also
How do I convert CamelCase into human-readable names in Java?
Regex for all strings not containing a string?
A regex to match a substring that isn’t followed by a certain other substring.
More examples
These are attempts to come ...
How to assign colors to categorical variables in ggplot2 that have stable mapping?
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The easiest solution is to convert your categorical variable to a factor prior to the subsetting. Bottomline is that you need a factor variable with exact the same levels in all your subsets.
library(ggplot2)
dataset <- data.frame(category = rep(LE...
How to find a min/max with Ruby
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In addition to the provided answers, if you want to convert Enumerable#max into a max method that can call a variable number or arguments, like in some other programming languages, you could write:
def max(*values)
values.max
end
Output:
max(7, 1234, 9, -78, 156)
=> 12...
Append TimeStamp to a File Name
...e_" + DateTime.Now.ToFileTime() + ".txt";
What does ToFileTime() do?
Converts the value of the current DateTime object to a Windows file time.
public long ToFileTime()
A Windows file time is a 64-bit value that represents the number of 100-nanosecond intervals that have elapsed sinc...
Why is no one using make for Java?
... then a rule to resolve that dependency.
With basic C, that typically "to convert a main.c file to a main.o file, run "cc main.c".
You can do that in java, but you quickly learn something.
Mostly that the javac compiler is slow to start up.
The difference between:
javac Main.java
javac This.jav...
How to create local notifications?
...ication If application is in background then it displays BadgeNumber as 10 and with default notification sound.
This code works fine for iOS 7.x and below but for iOS 8 it will prompt following error on console:
Attempting to schedule a local notification with an alert but haven't received per...
Returning first x items from array
...his case it is unrelated to the order. it is just about the first 5 items. and you can't use array_slice here.
– ESCOBAR
Jun 10 '14 at 16:20
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How to add a line break in C# .NET documentation
...can wrap text in <para></para> tags as a way to group the text and add the blank line after it, but there is no equivalent to <br /> or anything like that. (Which according to this old MS forum post is by design.) You can get the list of available tags in this documentation articl...