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Two states of empty arryays

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  Two states of empty arryays Léa Gris <lea@nomail.invalid> - 2019-12-12 17:38 +0100

#15715 — Two states of empty arryays

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

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