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Differences between Agda and Idris
...ample is associativity of vector concatenation. Given length-indexed lists called vectors defined thusly:
data Vect : Nat -> Type -> Type where
Nil : Vect 0 a
(::) : a -> Vect n a -> Vect (S n) a
and concatenation with the following type:
(++) : Vect n a -> Vect m a -> Vec...
What are the special dollar sign shell variables?
... I'm here and I can't find an answer anywhere because I don't know what to call it.
– Anthony
Oct 12 '16 at 19:47
7
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How assignment works with Python list slice?
...
@KartikAnand: Basically, yes. The interpreter knows which is which, and handles them appropriately.
– NPE
May 16 '12 at 17:21
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How do I put an 'if clause' in an SQL string?
...seOrder
SET purchaseOrder_status = 'COMPLETED'
WHERE purchaseOrder_ID = '@purchaseOrder_ID' and
not exists (SELECT *
FROM itemsOrdered WHERE purchaseOrder_ID = '@purchaseOrdered_ID' AND status = 'PENDING'
)
However, I might guess that yo...
Using JQuery - preventing form from submitting
... jQuery on API states: "Returning false from an event handler will automatically call event.stopPropagation() and event.preventDefault(). A false value can also be passed for the handler as a shorthand for function(){ return false; }."
– Paul
Aug 21 '15 at 19:...
Check if a string contains one of 10 characters
...ation) >= 0;
}
That way you don't end up creating a new array on each call. The string is also easier to scan than a series of character literals, IMO.
Of course if you're only going to use this once, so the wasted creation isn't a problem, you could either use:
private const string Punctuati...
Declare a constant array
...constant expression, while math.Sin(math.Pi/4) is not because the function call to math.Sin needs to happen at run time.
Slices and arrays are always evaluated during runtime:
var TestSlice = []float32 {.03, .02}
var TestArray = [2]float32 {.03, .02}
var TestArray2 = [...]float32 {.03, .02}
[...] ...
Remove ':hover' CSS behavior from element
...
I would use two classes. Keep your test class and add a second class called testhover which you only add to those you want to hover - alongside the test class. This isn't directly what you asked but without more context it feels like the best solution and is possibly the cleanest and simplest ...
Sort array by firstname (alphabetically) in Javascript
...
@mlienau, I wouldn't call it better or worse. It's just another
– RiaD
Apr 9 '13 at 20:58
19
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SQL Server add auto increment primary key to existing table
...ting table which is already populated with 150000 records. I have added an Id column (which is currently null).
15 Answers
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