Cli
Command Line Interface (CLI)
Installing the ruby2js gem adds a ruby2js executable to your path.
Invoking this executable with the --help option provides a list of options:
Usage: ruby2js [options] [file]
--autoexports [default] add export statements for top level constants
--autoimports=mappings automatic import mappings, without quotes
--defs=mappings class and module definitions
--equality double equal comparison operators
--es2015 ECMAScript level es2015
--es2016 ECMAScript level es2016
--es2017 ECMAScript level es2017
--es2018 ECMAScript level es2018
--es2019 ECMAScript level es2019
--es2020 ECMAScript level es2020
--es2021 ECMAScript level es2021
--es2022 ECMAScript level es2022
--exclude METHOD,... exclude METHOD(s) from filters
-f, --filter NAME,... process using NAME filter(s)
--identity triple equal comparison operators
--import_from_skypack use Skypack for internal functions import statements
--include METHOD,... have filters process METHOD(s)
--include-all have filters include all methods
--include-only METHOD,... have filters only process METHOD(s)
--ivars @name:value,... set ivars
--logical use '||' for 'or' operators
--nullish use '??' for 'or' operators
--require_recursive import all symbols defined by processing the require recursively
--strict strict mode
--template_literal_tags tag,...
process TAGS as template literals
--underscored_private prefix private properties with an underscore
--port n start a webserver
--install path install as a CGI program
If no file is specified, input will be read from STDIN.
A full description of the options can be found on the Options page of the documentation.
Installing the wunderbar gem is
required if you want to make use of the --port or --install options.