diff --git a/lib/rex/random_identifier/generator.rb b/lib/rex/random_identifier/generator.rb
index 4de3955..c534993 100644
--- a/lib/rex/random_identifier/generator.rb
+++ b/lib/rex/random_identifier/generator.rb
@@ -62,10 +62,30 @@ class ExhaustedSpaceError < StandardError; end
     ).uniq.freeze
   )
 
+  JavaScriptOpts = DefaultOpts.merge(
+    forbidden: (
+        # https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#reserved_words
+        # https://developer.mozilla.org/en-US/docs/Web/API/Window Instance methods
+        %w[
+          const continue debugger default delete do else export extends false finally for function if import in
+          instanceof new null return super switch this throw true try typeof var void while with let static yield
+          await arguments as async eval from get of set enum implements interface package private protected public
+          abstract boolean byte char double final float goto int long native short synchronized throws transient volatile
+          atob alert blur btoa cancelAnimationFrame cancelIdleCallback clearInterval clearTimeout close confirm
+          createImageBitmap dump fetch find focus getComputedStyle getDefaultComputedStyle getScreenDetails getSelection
+          matchMedia moveBy moveTo open postMessage print prompt queryLocalFonts queueMicrotask reportError
+          requestAnimationFrame requestIdleCallback resizeBy resizeTo scroll scrollBy scrollByLines scrollByPages
+          scrollTo setInterval setTimeout showDirectoryPicker showOpenFilePicker showSaveFilePicker sizeToContent
+          stop structuredClone updateCommands
+      ]
+    ).uniq.freeze
+  )
+
   Opts = {
     default: DefaultOpts,
     java: JavaOpts,
-    jsp: JSPOpts
+    jsp: JSPOpts,
+    javascript: JavaScriptOpts
   }
 
   # @param opts [Hash] Options, see {DefaultOpts} for default values