gistfile1.txt

akesterson@ATLPTLBS3TWW1 ~/source/vocalocity/tools-orchestration
$ cat ~/tmp/test.sh
#!/bin/bash

declare -A hashvar
declare -a array

function useit
{
    hashvar['lolsomething']=lol
    hashvar['lolwtf']=wtf
    array[0]=lol
    array[2]=yar
}

function clearit
{
    for arr in hashvar array
    do
        unset $arr[*]
    done
    hashvar=()
    array=()
}

useit
echo "hashvar : ${!hashvar[@]} : ${hashvar[@]}"
echo "array : ${!array[@]} : ${array[@]}"
clearit
useit
echo "hashvar : ${!hashvar[@]} : ${hashvar[@]}"
echo "array : ${!array[@]} : ${array[@]}"

akesterson@ATLPTLBS3TWW1 ~/source/vocalocity/tools-orchestration
$ bash ~/tmp/test.sh
hashvar : lolsomething lolwtf : lol wtf
array : 0 2 : lol yar
hashvar : 0 : wtf
array : 0 2 : lol yar

akesterson@ATLPTLBS3TWW1 ~/source/vocalocity/tools-orchestration
$ bash --version
GNU bash, version 4.1.10(4)-release (i686-pc-cygwin)
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.