nushell/tests/parsing/samples/recursive_func_with_alias.nu

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alias "orig update" = update
# Update a column to have a new value if it exists.
#
# If the column exists with the value `null` it will be skipped.
export def "update" [
field: cell-path # The name of the column to maybe update.
value: any # The new value to give the cell(s), or a closure to create the value.
]: [record -> record, table -> table, list<any> -> list<any>] {
let input = $in
match ($input | describe | str replace --regex '<.*' '') {
record => {
if ($input | get -i $field) != null {
$input | orig update $field $value
} else { $input }
}
table|list => {
$input | each {|| update $field $value }
}
_ => { $input | orig update $field $value }
}
}