react_ujs/src/getConstructor/fromRequireContext.js
// Load React components by requiring them from "components/", for example:
//
// - "pages/index" -> `require("components/pages/index")`
// - "pages/show.Header" -> `require("components/pages/show").Header`
// - "pages/show.Body.Content" -> `require("components/pages/show").Body.Content`
//
module.exports = function(reqctx) {
return function(className) {
var parts = className.split(".")
var filename = parts.shift()
var keys = parts
// Load the module:
var component = reqctx("./" + filename)
// Then access each key:
keys.forEach(function(k) {
component = component[k]
})
// support `export default`
if (component.__esModule) {
component = component["default"]
}
return component
}
}