Why not use slices to obtain and copy a complete subset of parent 1 in one operation and then parent2 in a second operation?

@newArray = ( @parent1[0..$crossover], 
              @parent2[$crossover+1..$#parent2] );

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Darn, my brain has gone blank. There must be a better way to specify the slice continues until the end of the array: $parent2[-1] is the last element, but @parent[3..-1] is empty even if @parent2 has more than four elements.

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In reply to Re: Optimization of array looping... by TomDLux
in thread Optimization of array looping... by salonmonk

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