Change Text Case: list.case

Changes the character case of a string or all elements in an array

Description

list.case will read an array from either stdin or it’s command line parameters, and change that list to be upper or lower case.

Usage

<stdin> -> list.case operation                           -> <stdout>
           list.case operation item1 [ item2 item3 ... ] -> <stdout>

Examples

As a method

» %[Monday..Friday] -> list.case upper
[
    "MONDAY",
    "TUESDAY",
    "WEDNESDAY",
    "THURSDAY",
    "FRIDAY"
]

As a function

» list.case lower @{ %[Monday..Friday] }
[
    "monday",
    "tuesday",
    "wednesday",
    "thursday",
    "friday"
]

Synonyms

See Also


This document was generated from builtins/core/lists/case_doc.yaml.

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Last built on Sun Jan 11 23:29:10 UTC 2026 against commit c710027c71002785e97a5d5fafbc0316e62c78a04812403.

Current version is 7.1.4143 (unknown) which has been verified against tests cases.