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Does every Javascript function have to return a value?
...e as return undefined
}
Also, in JS, like in most every language, you're free to simply ignore the return value of a function, which is done an awful lot:
(function()
{
console.log('this function in an IIFE will return undefined, but we don\'t care');
}());
//this expression evaluates to:
(un...
Can I add jars to maven 2 build classpath without installing them?
...e.
I created a new folder in the project in my case I used repo, but feel free to use src/repo
In my POM I had a dependency that is not in any public maven repositories
<dependency>
<groupId>com.dovetail</groupId>
<artifactId>zoslog4j</artifactId>
<ver...
Does Redis persist data?
... since last save
BGSAVE operation can only be performed if you have enough free RAM (the amount of extra RAM is equal to the size of redis DB)
N.B.: BGSAVE RAM requirement is a real problem, because redis continues to work up until there is no more RAM to run in, but it stops saving data to HDD m...
how does multiplication differ for NumPy Matrix vs Array classes?
...umpy array. If all you're doing is linear algebra, then by all means, feel free to use the matrix class... Personally I find it more trouble than it's worth, though.
For arrays (prior to Python 3.5), use dot instead of matrixmultiply.
E.g.
import numpy as np
x = np.arange(9).reshape((3,3))
y = np...
How to override to_json in Rails?
...erializable_hash instead of as_json. This will get your XML formatting for free too :)
This took me forever to figure out. Hope that helps someone.
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vector::at vs. vector::operator[]
...that says "code as sanctioned (guaranteed) by standard"; of course you are free to deliver in debug mode, but when doing cross platform development (including, but not exclusively, the case of same OS, but different compiler versions), relying on the standard is the best bet for releases, and debug ...
jQuery vs document.querySelectorAll
...lse positives when used in the way you propose. Nonetheless while your are free to up- or downvote for some nitpicky reason, I think it's not a reason to use rude language.
– Christoph
Jul 16 '13 at 16:39
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What are the best use cases for Akka framework [closed]
...eading and you get asynchronous message passing between objects almost for free.
It is very good in modeling any type of asynchronous message handling. I would prefer to write any type of (web) services system in this style than any other style. (Have you ever tried to write an asynchronous web ser...
How JavaScript closures are garbage collected
...o. These both seem like bugs. There is no language requirement in JS to "free" things in a function scope.
– jfriend00
Nov 5 '13 at 23:17
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How to detect incoming calls, in an Android device?
...use case the rare null and lost data was better than incorrect data. Feel free to twiddle with this to your needs.
– Gabe Sechan
Mar 5 '15 at 18:52
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