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Java 8: performance of Streams vs Collections
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Stop using LinkedList for anything but heavy removing from the middle of the list using iterator.
Stop writing benchmarking code by hand, use JMH.
Proper benchmarks:
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@BenchmarkMode(Mode.AverageTime)
@OperationsPerInvocation(StreamVsVanill...
How to redirect single url in nginx?
...file is an excellent way to replace my .htaccess file full of RewriteRules from apache.
– Josh from Qaribou
Mar 6 '15 at 17:39
3
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How to go back (ctrl+z) in vi/vim
...swer this question. The reputation requirement helps protect this question from spam and non-answer activity.
Not the answer you're looking for? Browse other questions t...
Bare asterisk in function arguments?
... bit of related information. The behaviour for the single asterisk derives from PEP-3102. Quoting the related section:
The second syntactical change is to allow the argument name to
be omitted for a varargs argument. The meaning of this is to
allow for keyword-only arguments for functions that woul...
Possibility of duplicate Mongo ObjectId's being generated in two different collections?
...ction.
There are three solutions to this:
You can unset() the _id field from the array
You can reinitialize the entire array with array() each time you loop through your dataset
You can explicitly define the _id value yourself (taking care to define it in such a way that you don't generate dups y...
How to get position of a certain element in strings vector, to use it as an index in ints vector?
...tor knowing an iterator pointing to the element, simply subtract v.begin() from the iterator:
ptrdiff_t pos = find(Names.begin(), Names.end(), old_name_) - Names.begin();
Now you need to check pos against Names.size() to see if it is out of bounds or not:
if(pos >= Names.size()) {
//old_n...
MongoDB inserts float when trying to insert integer
... an integer or a float. But there's not really a difference in JavaScript. From Learning JavaScript:
The Number Data Type
Number data types in JavaScript are floating-point numbers, but they may or may not have a fractional component. If they don’t have a decimal point or fractional component, th...
Should I use Vagrant or Docker for creating an isolated environment? [closed]
...ow works on Windows 10 Pro and up and Windows Server 2016. I just upgraded from Windows 10 Home to Windows 10 Pro and installed the docker app. I can now run Linux docker images on Windows 10. It's brilliant!
– PrestonDocks
Nov 11 '16 at 19:02
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How do I override __getattr__ in Python without breaking the default behavior?
... be called first (only works for new style classes i.e. those that inherit from object). In this case, you can preserve default behaviour like so:
class Foo(object):
def __getattribute__(self, name):
if some_predicate(name):
# ...
else:
# Default behaviou...
How to include layout inside layout?
...
From Official documents about Re-using Layouts
Although Android offers a variety of widgets to provide small and
re-usable interactive elements, you might also need to re-use larger
components that require a special l...