Obligatory CoffeeScript version

So you can fuck your Rails apps

fuckit.coffee

@@ -0,0 +1,49 @@
+###
+  FuckItJS v2.0.0-alpha
+
+  Note: this is ALPHA software and may result in
+  irreversible brain damage
+###
+
+$ ->
+
+  $.ajaxSetup { cache: true }
+
+  _FuckIt = window.FuckIt;
+
+  FuckIt = (script) ->
+    req = $.ajax {
+      url: script,
+      dataType: 'text'
+    }
+
+    success = (result) ->
+      window.fuckedScript = result
+      eval window.fuckedScript
+
+    error = ->
+      throw new Error "Could not load script: #{script}"
+
+    req.then success, error
+
+  window.onError = (error, url, line) ->
+    if not window.fuckedScript then return
+
+    parsed = window.fuckedScript.split "\n"
+    parsed.splice line - 1, 1
+    
+    window.fuckedScript = parsed.join "\n"
+
+    $.getScript 'FuckIt.js', () ->
+      eval window.fuckedScript
+
+    return true
+
+  FuckIt.noConflict = () ->
+    window.FuckIt = _FuckIt
+    FuckIt
+
+  FuckIt.moreConflict = () ->
+    window[prop] = FuckIt for prop in window when prop isnt 'location'
+
+  window.FuckIt = FuckIt;