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The delete function removes a value from an element of an array but not the element itself

The value deleted is simply undefined. # Removing an array element @colors=("red","green","blue","yellow"); print "@colors\n"; delete $colors[1];  # green is removed print "@colors\n"; print $colors[1],"\n"; $size=@colors;      # value is now undefined print "The size of the array is $size.\n";