razouck

#
# hosts         This file describes a number of hostname-to-address
#               mappings for the TCP/IP subsystem.  It is mostly
#               used at boot time, when no name servers are running.
#               On small systems, this file can be used instead of a
#               "named" name server.
# Syntax:
#    
# IP-Address  Full-Qualified-Hostname  Short-Hostname
#

razouck

let a = [1, 2, [3, [4, [5, [6], [7, [8]]]]]];

function brainDeadDeepFlat(arr)
{
	return Array.isArray(arr)
		? arr.reduce( (arr, e) => arr.concat(brainDeadDeepFlat(e)), [] )
		: [arr];
}

function normalBrainDeepFlat(arr)