In 2022, ruby.wasm emerged and has advanced in the realm of Ruby in browser. Examples include loading Ruby scripts from files, automatic conversion of JavaScript native types, and Promise operations. On the other hand, there has been no progress in executing Ruby scripts from JavaScript. Currently, only minimal eval functionality is available. By implementing features equivalent to Ruby in browser—such as loading scripts from files, automatic conversion of native types, and method calls—we can expand Ruby's use cases. For example, it could enable executing Ruby libraries from JavaScript running in browsers or Node.js servers.