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Two states of empty arrays

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  Two states of empty arrays Léa Gris <lea.gris@noiraude.net> - 2019-12-12 18:08 +0100

#15714 — Two states of empty arrays

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Hello,

Depending on how an empty array is declared, it is not stored with the
same state.

# Empty array declared without parenthesis
unset myArr
declare -a myArr
typeset -p myArr
echo "${#myArr[@]}"

output:
declare -a myArr
0

# Empty array declared without parenthesis
unset myArr
declare -a myArr=()
typeset -p myArr
echo "${#myArr[@]}"

output:
declare -a myArr=()
0

What is the reason for having different states for empty arrays?

-- 
Lea Gris

-- 
Léa Gris

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