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Line 384: ELENA Script is a subset of the general language. ELT (Virtual machine terminal) can work in REPL mode <syntaxhighlight lang="elena"> c:\Alex\ELENA\bin>elt-cli ELENA command line VM terminal 56.10.137 (C)~~2011~~2021-~~2020~~23 by ~~Alexei~~Aleksey Rakov ELENA VM 56.10.1725 (C)~~2005~~2022-~~2020~~2023 by ~~Alex~~Aleksey Rakov Initializing... -q - quit ~~Done...~~ -c - clear -h - help -l <path> - execute a script from file -p<script>; - prepend the prefix code { <script>; }* <script> - execute script >f-pf(s1,s2,sep){^ s1 + sep + sep + s2 }; >f("Rosetta","Code",":") Line 555 ⟶ 561: =={{header\|Fōrmulæ}}== The interactive mode (REPL) is the primary working mode in Fōrmulæ. ~~{{FormulaeEntry\|page=https://formulae.org/?script=examples/Interactive_programming}}~~ To use it, open the web address [https://formulae.org/ formulae.org] in your browser. it is preferable to use this environment in a desktop web browser. It is not necessary to install anything else. A page with information is shown. You can start a new script using the [[File:Fōrmulæ - Interactive programming 05.png\|border]] tool (new document). [[File:Fōrmulæ - Interactive programming 04.png\|border]] =={{header\|GAP}}== Line 662 ⟶ 676: WRITE(ClipBoard) TRIM(A) // ':' // TRIM(C) // TRIM(B) ! Rosetta::Code</syntaxhighlight> =={{Header\|Insitux}}== First is the system shell, when Insitux has been already been installed system-wide (<code>npm i -g insitux</code>). <pre> $ npx ix Insitux 230728 REPL ❯ (function f s1 s2 sep (str s1 sep sep s2)) ❯ (f "Rosetta" "Code" ":") Rosetta::Code ❯ </pre> =={{header\|Io}}== Line 701 ⟶ 728: Rosetta::Code </syntaxhighlight> Alternatively <syntaxhighlight lang="java"> Java has an interactive REPL (Read-Evaluate-Print-Loop) console, jshell, that is included with the JDK. The REPL is started by invoking: $JAVA_HOME/bin/jshell Here is a sample session to accomplish the task. \| Welcome to JShell -- Version 20 \| For an introduction type: /help jshell> String concat(String a, String b, String c) { return a + c + c + b; } \| created method concat(String, String, String) jshell> concat("Rosetta", "Code", ":") $2 ==> "Rosetta::Code" jshell> </syntaxhighlight> Line 1,913 ⟶ 1,957: $ ./wren \\/"- \_/ wren v0.24.0 > var f = Fn.new { \|s1, s2, sep\| s1 + sep + sep + s2 } > f.call("Rosetta", "Code", ":")