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How to get the difference between two arrays in JavaScript?
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May I know what will happen when var a1 = ['a', 'b']; and var a2 = ['a', 'b', 'c', 'd', 'b'];, it will return wrong answer, i.e. ['c', 'd', 'b'] instead of ['c', 'd'].
– skbly7
Oct 11 '15 at 23...
Repeat a task with a time delay?
...er's postDelayed function for this purpose. It will run your code with specified delay on the main UI thread, so you will be able to update UI controls.
private int mInterval = 5000; // 5 seconds by default, can be changed later
private Handler mHandler;
@Override
protected void onCreate(Bundle b...
What is your preferred style for naming variables in R? [closed]
...ead comments to this effect on one of the R list: dots are a historical artifact and no longer encouraged;
so we have a clear winner still standing in the last round: camelCase. I am also not sure if I really agree with the assertion of 'lacking precendent in the R community'.
And yes: pragmatis...
What's the “average” requests per second for a production web application?
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@user :-D Yes, it's pretty much historical now. It was a useful answer for me at the time, though! :-)
– Peter K.
Sep 14 '17 at 10:59
add a com...
Passing parameters to addTarget:action:forControlEvents
...clear what exactly you try to do, but considering you want to assign a specific details index to each button you can do the following:
set a tag property to each button equal to required index
in switchToNewsDetails: method you can obtain that index and open appropriate deatails:
- (void)switchTo...
What are some compelling use cases for dependent method types?
...pendent method types, which used to be an experimental feature before, has now been enabled by default in the trunk , and apparently this seems to have created some excitement in the Scala community.
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Converting from IEnumerable to List [duplicate]
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I wonder if Microsoft changed this. I just tried this very example, and there is no ToList() method in IEnumerable. Using VS 2015 and .NET 4.6.1 .
– James
Dec 22 '16 at 20:20
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Why does the MongoDB Java driver use a random number generator in a conditional?
...gan's laws it is a trivial observation that this piece of code amounts to
if (!_ok && Math.random() <= 0.1)
return res;
The commit that originally introduced this logic had
if (_ok == true) {
_logger.log( Level.WARNING , "Server seen down: " + _addr, e );
} else if (Math.random() &...
Ideal Ruby project structure
I'm after an overview/clarification of the ideal project structure for a ruby (non-rails/merb/etc) project. I'm guessing it follows
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New self vs. new static
...ay is the use of late static binding like return new static($options); , if I convert this to return new self($options) will I get the same results?
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