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Pick a random value from an enum?
... new RandomEnum<Season>(Season.class);
public static void main(String[] args) {
System.out.println(r.random());
}
private static class RandomEnum<E extends Enum<E>> {
private static final Random RND = new Random();
private final E[] values;
...
How to determine if a process runs inside lxc/Docker?
...4 using LXC privileged container. /proc/1/cgroup does NOT contain the lxc string.
– Gab
Sep 1 '19 at 11:51
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show 2 more comments
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Replacement for deprecated -sizeWithFont:constrainedToSize:lineBreakMode: in iOS 7?
...[text boundingRectWithSize:size
options:NSStringDrawingUsesLineFragmentOrigin
attributes:@{NSFontAttributeName:FONT}
context:nil];
CGSize size = textRect.size;
Just change "FONT" for an "[UIFont font.....
How can you represent inheritance in a database?
...t a table with only the common field and add a single column with the JSON string that contains all the subtype specific fields.
I have tested this design for manage inheritance and I am very happy for the flexibility that I can use in the relative application.
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Sorting an array of objects in Ruby by object attribute?
...
I recommend using sort_by instead:
objects.sort_by {|obj| obj.attribute}
Especially if attribute may be calculated.
Or a more concise approach:
objects.sort_by(&:attribute)
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nvarchar(max) vs NText
... want to be using. The biggest advantage is that you can use all the T-SQL string functions on this data type. This is not possible with ntext. I'm not aware of any real disadvantages.
share
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impro...
An efficient way to transpose a file in Bash
... ")|transpose|map(join(" "))[]'
jq -R . prints each input line as a JSON string literal, -s (--slurp) creates an array for the input lines after parsing each line as JSON, and -r (--raw-output) outputs the contents of strings instead of JSON string literals. The / operator is overloaded to split s...
How to include layout inside layout?
...clude a layout and set some of its properties via the xml, e.g. set a text string in the sublayout directly in the <include> tag?
– JohnyTex
May 3 '19 at 10:22
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Linking R and Julia?
...("sqrt", 2)
julia_eval("sqrt")(2)
As you can see, you could send command strings and call Julia functions really easily.
And there are also some R packages wrapping Julia packages using JuliaCall, for example,
convexjlr for Disciplined Convex Programming in R using Convex.jl, which is also on ...
How do I get the MIN() of two fields in Postgres?
...ue of expression across all input values with` expression` is any numeric, string, date/time, network, or enum type, or arrays of these types
– charlesdg
Jan 11 '19 at 10:05
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