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REST response code for invalid data
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305
400 is the best choice in both cases. If you want to further clarify the error you can either...
How to check if an object is a list or tuple (but not string)?
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331
In python 2 only (not python 3):
assert not isinstance(lst, basestring)
Is actually what yo...
How does Duff's device work?
... // Set to 20
{
int n = (count + 7) / 8; // n is now 3. (The "while" is going
// to be run three times.)
switch (count % 8) { // The remainder is 4 (20 modulo 8) so
// jump to the ca...
How to convert a clojure keyword into a string?
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kotarakkotarak
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Defining a function with multiple implicit arguments in Scala
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3 Answers
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Active
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What is “lifting” in Scala?
...gt;
scala> res1(-1)
res2: Option[Boolean] = None
scala> res1(1)
res3: Option[Boolean] = Some(false)
Methods
You can "lift" a method invocation into a function. This is called eta-expansion (thanks to Ben James for this). So for example:
scala> def times2(i: Int) = i * 2
times2: (i: In...
How to “pretty” format JSON output in Ruby on Rails
...ns of JSON. For example:
require 'json'
my_object = { :array => [1, 2, 3, { :sample => "hash"} ], :foo => "bar" }
puts JSON.pretty_generate(my_object)
Which gets you:
{
"array": [
1,
2,
3,
{
"sample": "hash"
}
],
"foo": "bar"
}
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Order a MySQL table by two columns
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493
Default sorting is ascending, you need to add the keyword DESC to both your orders:
ORDER BY ar...