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. ...
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 ...