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Can you explain how Zsh’s associative arrays work? Provide an example use case.

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Zsh’s associative arrays are similar to hash tables, where each key-value pair is unique. To declare an associative array in Zsh, use “typeset -A”, followed by the name of the array. Assigning values involves referencing the key inside square brackets after the array name, then assigning a value using equals sign.

Example:

typeset -A arr
arr=(
[key1]="value1"
[key2]="value2"
)
echo $arr[key1] # Outputs: value1

This example declares an associative array ‘arr’ and assigns two keys with respective values. The echo command retrieves the value associated with ‘key1’. Associative arrays are useful when you need to store data that doesn’t fit well into a regular indexed array, such as configuration settings or options for a script.

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