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Is the creation of Java class files deterministic?
...nces? Is a difference only possibly in theory or does Oracle's javac actually produce different class files for the same input and compiler options?
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How do you represent a JSON array of strings?
This is all you need for valid JSON, right?
4 Answers
4
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Linq list of lists to single list
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Use SelectMany
var all = residences.SelectMany(x => x.AppForm_Residences);
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How to get nice formatting in the Rails console
...he y method is a handy way to get some pretty YAML output.
y ProductColor.all
Assuming you are in script/console
As jordanpg commented, this answer is outdated. For Rails 3.2+ you need to execute the following code before you can get the y method to work:
YAML::ENGINE.yamler = 'syck'
From rub...
Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
... which could be used to zip streams (this is illustrated in the tutorial Exploring Java8 Lambdas. Part 1 by Dhananjay Nene ). This function :
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What is the maximum amount of RAM an app can use?
...he heap limit. And, since Android 3.0, apps can request a "large heap", usually in the hundreds of MB range, but that's considered poor form for most apps.
Furthermore, I noticed that some apps of mine crash with an OutOfMemoryException when using around 30-40 Megabytes.
Bear in mind that the ...
Convert pandas dataframe to NumPy array
...p.nan)
# array([ 1., 2., nan])
This is called out in the docs.
If you need the dtypes...
As shown in another answer, DataFrame.to_records is a good way to do this.
df.to_records()
# rec.array([('a', -1, 4), ('b', 2, 5), ('c', 3, 6)],
# dtype=[('index',...
curl json post request via terminal to a rails app
I'm trying to create a user on my rails app with a curl command from os x terminal. No matter how I format the data, the app returns a responses that non of my validations have passed.
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How do I remove javascript validation from my eclipse project?
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I actually like MY JavaScript files to be validated, but I definitely don't want to validate and deal with trivial warnings with third party libraries.
That's why I think that turning off validation all together is too drastic. F...
How to filter None's out of List[Option]?
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someList.filter(_.isDefined) if you want to keep the result type as List[Option[A]]
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