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What is a reasonable order of Java modifiers (abstract, final, public, static, etc.)?
...]
If two or more (distinct) class modifiers appear in a class declaration, then it is customary, though not required, that they appear in the order consistent with that shown above in the production for ClassModifier. (small text at the bottom of the paragraph!)
You will find this sentence at sever...
How to frame two for loops in list comprehension python
...they appear in traditional loop approach. Outer most loop comes first, and then the inner loops subsequently.
So, the equivalent list comprehension would be:
[entry for tag in tags for entry in entries if tag in entry]
In general, if-else statement comes before the first for loop, and if you hav...
Private properties in JavaScript ES6 classes
...akMap. So, we use the scoped variables method to create a private WeakMap, then use that WeakMap to retrieve private data associated with this. This is faster than the scoped variables method because all your instances can share a single WeakMap, so you don't need to recreate methods just to make th...
What is the Scala annotation to ensure a tail recursive function is optimized?
...mark specific methods that you hope the compiler will optimise.
You will then get a warning if they are not optimised by the compiler.
In Scala 2.7 or earlier, you will need to rely on manual testing, or inspection of the bytecode, to work out whether a method has been optimised.
Example:...
How to enumerate an enum with String type?
...= "♠"; case hearts = "♥"; case diamonds = "♦"; case clubs = "♣" }
Then the following code will print all possible values:
Suit.allCases.forEach {
print($0.rawValue)
}
Compatibility with earlier Swift versions (3.x and 4.x)
If you need to support Swift 3.x or 4.0, you may mimic the Swi...
Java regex capturing groups indexes
..., or to specify where alternation should take effect, e.g. ^(0*1|1*0)$ (^, then 0*1 or 1*0, then $) versus ^0*1|1*0$ (^0*1 or 1*0$).
A capturing group, apart from grouping, will also record the text matched by the pattern inside the capturing group (pattern). Using your example, (.*):, .* matches A...
How do I change the formatting of numbers on an axis with ggplot?
...)
# return this as an expression
parse(text=l)
}
Which you can then use as
ggplot(data=df, aes(x=x, y=y)) +
geom_point() +
scale_y_continuous(labels=fancy_scientific)
share
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im...
What's best SQL datatype for storing JSON string?
...ese or other non-Western-European characters in your strings, potentially? Then go with NVARCHAR
The (N)VARCHAR columns come in two flavors: either you define a maximum length that results in 8000 bytes or less (VARCHAR up to 8000 characters, NVARCHAR up to 4000), or if that's not enough, use the (...
For i = 0, why is (i += i++) equal to 0?
...ly to programming when programming is functional programming. And not even then, because of representational limitations. For instance floating-point numbers sometimes behave like reals and sometimes not. Even without side effects, commutativity and associativity laws that apply to real numbers in m...
How do I increase the number of displayed lines of a Java stack trace dump?
...a method catches exception Foo, wraps it in exception Bar, and throws Bar. Then Foo's stack trace will be shortened. If you for some reason want the full trace, all you need to do is take the last line before the ... in Foo's stack trace and look for it in the Bar's stack trace; everything below tha...