Usage: kotlinc-js where possible options include: -output Output file path -no-stdlib Don't use bundled Kotlin stdlib -libraries Paths to Kotlin libraries with .meta.js and .kjsm files, separated by system path separator -source-map Generate source map -meta-info Generate .meta.js and .kjsm files with metadata. Use to create a library -target { v5 } Generate JS files for specific ECMA version -module-kind { plain, amd, commonjs, umd } Kind of a module generated by compiler -main {call,noCall} Whether a main function should be called -output-prefix Path to file which will be added to the beginning of output file -output-postfix Path to file which will be added to the end of output file -language-version Provide source compatibility with specified language version -api-version Allow to use declarations only from the specified version of bundled libraries -P plugin::= Pass an option to a plugin -help (-h) Print a synopsis of standard options -X Print a synopsis of advanced options -version Display compiler version -verbose Enable verbose logging output -nowarn Generate no warnings OK