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What is the difference between a 'closure' and a 'lambda'?
...eturn func()
Because here, func is defined in anotherfunc, and in python 2.3 and greater (or some number like this) when they almost got closures correct (mutation still doesn't work), this means that it closes over anotherfunc's environment and can access variables inside of it. In Python 3.1+, ...
Ruby - test for array
...
524
You probably want to use kind_of().
>> s = "something"
=> "something"
>> s.kind...
Checking images for similarity with OpenCV
...
211
This is a huge topic, with answers from 3 lines of code to entire research magazines.
I will o...
Should I declare Jackson's ObjectMapper as a static field?
... would do that from the static block and it would be fine as well.
EDIT: (2013/10)
With 2.0 and above, above can be augmented by noting that there is an even better way: use ObjectWriter and ObjectReader objects, which can be constructed by ObjectMapper.
They are fully immutable, thread-safe, mean...
What's the syntax for mod in java
...s, you can use the remainder operator %. For your exact example:
if ((a % 2) == 0)
{
isEven = true;
}
else
{
isEven = false;
}
This can be simplified to a one-liner:
isEven = (a % 2) == 0;
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Splitting string into multiple rows in Oracle
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122
This may be an improved way (also with regexp and connect by):
with temp as
(
select 108 N...
Passing a single item as IEnumerable
...ts an IEnumerable<T> parameter? Language is C#, framework version 2.0.
18 Answers
...
How to round up a number in Javascript?
...ince the number is currency, I want it to round up like in these examples (2 decimal points):
9 Answers
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How to produce a range with step n in bash? (generate a sequence of numbers with increments)
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201
I'd do
for i in `seq 0 2 10`; do echo $i; done
(though of course seq 0 2 10 will produce th...