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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
...ume that a developer is only adding enums where they're useful. The only really bad use I've seen of enums was in some harmony code where they really wanted ints (for bitmasks and the like) and the "enum" wasn't an enum in any reasonable sense. If you find yourself calling "ordinal()" a lot, that's ...
How to inject dependencies into a self-instantiated object in Spring?
...
This is actually a bad pattern. If this is how you really use MyBean why not just have constructor with AnotherBean as parameter. Something like: code private @Autowired AnotherBean bean; public void doStuff() { MyBean obj = new M...
How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
...t, postfix is much better. An example would be an iterator where you typically use: for(pos=c.begin(); ...; ++pos) {} instead of pos++
– Eric
Oct 2 '10 at 16:28
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Regex lookahead for 'not followed by' in grep
I am attempting to grep for all instances of Ui\. not followed by Line or even just the letter L
5 Answers
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JavaScript ternary operator example with functions
...he best...
x = (1 < 2) ? true : false;
The use of ternary here is totally uncessesary - you could simply write
x = (1 < 2);
Likewise, the condition element of a ternary statement is always evaluated as a Boolean value, therefore you can express:
(IsChecked == true) ? removeItem($this) :...
How do I share IntelliJ Run/Debug configurations between projects?
... with others.
You could copy this file and put it in the same location in all your idea projects.
However, in the future, you might want to consider using source control branches for app versions rather than separate projects. IntelliJ handles these very well.
...
Grasping the Node JS alternative to multithreading
...l so it can perform blocking operations and notify the main thread with a callback or event when things complete.
So I imagine that it will make limited use of another core for the thread pool, for example if you do a non-blocking file system read this is likely implemented by telling a thread fro...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
...ut this, but I gave up in the end, as the rules are somewhat diffuse. Basically, you’ll have to get the hang of it.
Perhaps it is best to concentrate on where curly braces and parenthesis can be used interchangeably: when passing parameters to method calls. You may replace parenthesis with curly b...
Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.
...ernel
def require_relative(path)
require File.join(File.dirname(caller[0]), path.to_str)
end
end
end
This allows you to use require_relative as you would in ruby 1.9.2 in ruby 1.8 and 1.9.1.
share
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Python multiprocessing pool.map for multiple arguments
...rmap method, which accepts a sequence of argument tuples. It then automatically unpacks the arguments from each tuple and passes them to the given function:
import multiprocessing
from itertools import product
def merge_names(a, b):
return '{} & {}'.format(a, b)
if __name__ == '__main__':...