In Ruby, what is the most expressive way to map an array in such a way that certain elements are modified and the others left untouched?
This is a straight-forward way to do it:
old_a = ["a", "b", "c"] # ["a", "b", "c"]
new_a = old_a.map { |x| (x=="b" ? x+"!" : x) } # ["a", "b!", "c"]
Omitting the "leave-alon...
What is the Linq equivalent to the map! or collect! method in Ruby?
a = [ "a", "b", "c", "d" ]
a.collect! {|x| x + "!" }
a #=> [ "a!", "b!", "c!", "d!" ]
I could do this by iterating over the collection with a foreach, but I was wondering if there was a more elegant Linq solution.
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I have an application I am making that creates a large number of windows controls (buttons and labels etc). They are all being made dynamically through functions. The problem I'm having is, when I remove the controls and dispose them, they are not removed from memory.
void loadALoadOfStuff()
{
while(tabControlToClear.Controls.Count ...
I have alphabet array 24 character: "A B C D E F G H I J K L M N O P Q R S T U V W X"
I want collect all case with: 3 unique characters.
First case: ABC, DEF, GHI, JKL, MNO, PQR, STU, VWX
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