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How many spaces will Java String.trim() remove?
...answer isn't intended to be a comprehensive analysis of trim, isWhiteSpace etc, or a discussion of ambiguities in the Java docs; it's a straightforward answer to the specific question asked above -- ie, does the trim method remove a single space or multiple spaces?
– LukeH
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Fast permutation -> number -> permutation mapping algorithms
...be very small. This can "easily" be reduced to O(nlogn) though, through an order statistics tree (pine.cs.yale.edu/pinewiki/OrderStatisticsTree), i.e. a red-black tree which initially will contains the values 0, 1, 2, ..., n-1, and each node contains the number of descendants below it. With this, on...
Is there any sed like utility for cmd.exe? [closed]
...ve" option, but it's not installed on Windows by default; it has sed, grep etc. out of the box, though.
https://github.com/mbuilov/sed-windows offers recent 4.3 and 4.4 versions, which support -z option unlike listed upper ports
If you don't want to install anything and your system ain't a Windows...
Upgrade python packages from requirements.txt using pip command
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I suggest freezing all of your dependencies in order to have predictable builds.
When doing that, you can update all dependencies at once like this:
sed -i '' 's/==/>=/g' requirements.txt
pip install -U -r requirements.txt
pip freeze > requirements.txt
Having do...
Can you create nested WITH clauses for Common Table Expressions?
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These answers are pretty good, but as far as getting the items to order properly, you'd be better off looking at this article
http://dataeducation.com/dr-output-or-how-i-learned-to-stop-worrying-and-love-the-merge
Here's an example of his query.
WITH paths AS (
SELECT
Employ...
Removing duplicate objects with Underscore for Javascript
... array of strings. Also, if you add b values to the uniques and invert the order of a/b they are no longer considered unique by your function. (e.g. `"{\"a\":\"1\",\"b\":2}" != "{\"b\":2,\"a\":\"1\"}") Maybe im missing something, but shouldn't the result at least be useful? Here is a jsbin to illust...
What's the point of 'const' in the Haskell Prelude?
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It's useful for passing to higher-order functions when you don't need all their flexibility. For example, the monadic sequence operator >> can be defined in terms of the monadic bind operator as
x >> y = x >>= const y
It's somewhat neater...
Can I have multiple :before pseudo-elements for the same element?
... position: absolute;
content: "";
/* more styles: width, height, etc */
}
.circle:after {
position: absolute;
content: "";
/* more styles: width, height, etc */
}
.circle span {
/* not relative/absolute/fixed */
}
.circle span:before {
position: absolute;
content...
Using Emacs as an IDE
...t Environment for many languages - C/C++, Java, Perl, Lisp/Scheme, Erlang, etc...
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How do I generate random integers within a specific range in Java?
...le value in the range [0,1). Notice this range does not include the 1.
In order to get a specific range of values first, you need to multiply by the magnitude of the range of values you want covered.
Math.random() * ( Max - Min )
This returns a value in the range [0,Max-Min), where 'Max-Min' is...