urban-filehub/resources/js/bootstrap.js

window.axios = require('axios')
window.riot = require('riot')

// riot-class-names-plugin.js
/**
 * Convert object class constructs into strings
 * @param   {Object} classes - class list as object
 * @returns {string} return only the classes having a truthy value
 */
function classNames(classes) {
  return Object.entries(classes).reduce((acc, item) => {
    const [key, value] = item

    if (value) return [...acc, key]

    return acc
  }, []).join(' ')
}

// install the classNames plugin
riot.install(function(component) {
  // add the classNames helper to all the riot components
  component.classNames = classNames

  return component
})