Add option system to allow to selectively enable options

Author: MaySoMusician

react_ujs/index.js

@@ -8,7 +8,7 @@ var constructorFromRequireContext = require("./src/getConstructor/fromRequireCon
 var constructorFromRequireContextWithGlobalFallback = require("./src/getConstructor/fromRequireContextWithGlobalFallback")
 var constructorFromRequireContextsWithGlobalFallback = require("./src/getConstructor/fromRequireContextsWithGlobalFallback")
 const { supportsHydration, reactHydrate, createReactRootLike } = require("./src/renderHelpers")
-const { replaceNullWithUndefined } = require("./src/options")
+const { replaceNullWithUndefined, overwriteOption } = require("./src/options")
 
 var ReactRailsUJS = {
   // This attribute holds the name of component which should be mounted
@@ -37,6 +37,10 @@ var ReactRailsUJS = {
     replaceNull: false,
   },
 
+  setOptions: function(newOptions) {
+    overwriteOption(ReactRailsUJS.options, newOptions, "replaceNull")
+  },
+
   // helper method for the mount and unmount methods to find the
   // `data-react-class` DOM elements
   findDOMNodes: function(searchSelector) {

react_ujs/src/options.js

@@ -11,3 +11,8 @@ export function replaceNullWithUndefined(obj) {
   })
   return obj
 }
+
+export function overwriteOption(ujsOptions, newOptions, key) {
+  if (!Object.prototype.hasOwnProperty.call(newOptions, key)) return
+  ujsOptions[key] = newOptions[key]
+}