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Why are C# interface methods not declared abstract or virtual?
...r CS0106: The modifier 'virtual' is not valid for this item". Tested using v2.0.50727 (oldest version on my PC).
– ccppjava
Aug 22 '13 at 10:01
3
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Why do you need to create a cursor when querying a sqlite database?
...e nonstandard, i.e. they are not part of Python Database API Specification v2.0 (PEP 249).
As long as you use the standard methods of the Cursor object, you can be sure that if you switch to another database implementation that follows the above specification, your code will be fully portable. Perh...
How to add text inside the doughnut chart using Chart.js?
...
Worth mentioning that it doesn't work with v2. Use included jsfiddle code for easy of use
– Alwin Kesler
May 24 '16 at 21:15
1
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Javascript trick for 'paste as plain text` in execCommand
...
@Fanky See if you can re-create it on here: jsfiddle.net/v2qbp829.
– Jamie Barker
Jul 22 '16 at 15:41
2
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Which are more performant, CTE or temporary tables?
...(NEWID() AS BINARY(4))
FROM master..spt_values v1,
master..spt_values v2;
Example 1
WITH CTE1 AS
(
SELECT A,
ABS(B) AS Abs_B,
F
FROM T
)
SELECT *
FROM CTE1
WHERE A = 780
Notice in the plan above there is no mention of CTE1. It just accesses the base tables directly and is t...
How to optimize for-comprehensions and loops in Scala?
...ll" in a concise manner. I failed miserably and came up with
object P005_V2 extends App {
def isDivis(x:Int):Boolean = {
var i = 1
while(i <= 20) {
if (x % i != 0) return false
i += 1
}
return true
}
def find(n:Int):Int = if (isDivis(n)) n else find (n+2)
pri...
Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
...
Homebrew doesn't provide a way to install old version formula. And since v2.0.0, it will run brew cleanup as default behaviours every 30 days. Therefore, you may accidentally update brew and delete the old version.
Here are the steps to install old version:
Go to homebrew-core directory:
...
How to toggle a value in Python
...0
>>> x ^= 1
>>> x
1
The technique generalizes to any pair of integers. The xor-by-one step is replaced with a xor-by-precomputed-constant:
>>> A = 205
>>> B = -117
>>> t = A ^ B # precomputed toggle constant
>>> x = A
>>> x ^...
How to hash a password
... Yes that is the plan. You would then decide based on V1 and V2 which verification method you need.
– Christian Gollhardt
May 7 '16 at 21:42
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Final arguments in interface methods - what's the point?
... @Dormouse, it's interesting, because Android Studio (3.1.4 Build #AI-173.4907809) does not :(
– The Godfather
Nov 12 '18 at 20:30
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