zsh: How to declare associative array programmatically?

To declare associative array programmatically, I tried this:

foo=bar
typeset -A "${foo}"=([hello]=world)

Whatever I try, I’m getting:

zsh: unknown sort specifier

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How to declare an associative array using a variable to set its name ?

>Solution :

This might not be the best way, but you can use indirect parameter expansion after declaring the name to be an associative array.

foo=bar
typeset -A "${(p)foo}"
typeset "${(p)foo}[hello]=world"

You can also use set -A

foo=bar
set -A $foo hello world