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Append value to empty vector in R?
...ged instead, as this is a fairly common pattern.
– baxx
Oct 28 '18 at 16:50
1
at this point, it ...
How to get the Power of some Integer in Swift language?
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If you like, you could declare an infix operator to do it.
// Put this at file level anywhere in your project
infix operator ^^ { associativity left precedence 160 }
func ^^ (radix: Int, power: Int) -> Int {
return Int(pow(Double(radix), Double(power)))
}...
How can I reorder a list? [closed]
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I just could not understand the syntax until I realized is a pairwise simultaneous assignment. ´:-)
– loved.by.Jesus
Apr 27 at 9:56
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Iterating over each line of ls -l output
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Set IFS to newline, like this:
IFS='
'
for x in `ls -l $1`; do echo $x; done
Put a sub-shell around it if you don't want to set IFS permanently:
(IFS='
'
for x in `ls -l $1`; do echo $x; done)
Or use while | read instead:
ls -l $1 | while read x; do echo $x; don...
Minimal web server using netcat
...500, for instance, it should show the result of a function ( date in the example below, but eventually it'll be a python or c program that yields some data).
My little netcat web server needs to be a while true loop in bash, possibly as simple as this:
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C# elegant way to check if a property's property is null
In C#, say that you want to pull a value off of PropertyC in this example and ObjectA, PropertyA and PropertyB can all be null.
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Split List into Sublists with LINQ
...bject> into several separate lists of SomeObject , using the item index as the delimiter of each split?
31 Answers
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CSS Selector “(A or B) and C”?
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is there a better syntax?
No. CSS' or operator (,) does not permit groupings. It's essentially the lowest-precedence logical operator in selectors, so you must use .a.c,.b.c.
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How can I add new array elements at the beginning of an array in Javascript?
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Use unshift. It's like push, except it adds elements to the beginning of the array instead of the end.
unshift/push - add an element to the beginning/end of an array
shift/pop - remove and return the first/last element of an array
A simple diagram......
Extract elements of list at odd positions
So I want to create a list which is a sublist of some existing list.
5 Answers
5
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