Cheats.

Don't do this. Why am I doing it, then? Because indexOf is so
slooooooooooooooooooooooooooooooooooooooooooooooooooooooooooow

Gruntfile.coffee

@@ -16,6 +16,7 @@ module.exports = (grunt) ->
       )
       coffee:
         src: [
+          'src/General/Cheats.coffee'
           'src/General/Config.coffee'
           'src/General/Globals.coffee'
           'src/General/lib/*.coffee'

builds/4chan-X.user.js

@@ -352,18 +352,6 @@
     posts: {}
   };
 
-  Array.prototype.indexOf = function(val) {
-    var i;
-
-    i = this.length;
-    while (i--) {
-      if (this[i] === val) {
-        return i;
-      }
-    }
-    return i;
-  };
-
   $ = function(selector, root) {
     if (root == null) {
       root = d.body;
@@ -833,6 +821,20 @@
     return __slice.call(root.querySelectorAll(selector));
   };
 
+  Array.prototype.indexOf = function(val) {
+    var i;
+
+    i = this.length;
+    while (i--) {
+      if (this[i] === val) {
+        return i;
+      }
+    }
+    return i;
+  };
+
+  __indexOf = [].indexOf;
+
   Board = (function() {
     Board.prototype.toString = function() {
       return this.ID;

builds/crx/script.js

@@ -330,18 +330,6 @@
     posts: {}
   };
 
-  Array.prototype.indexOf = function(val) {
-    var i;
-
-    i = this.length;
-    while (i--) {
-      if (this[i] === val) {
-        return i;
-      }
-    }
-    return i;
-  };
-
   $ = function(selector, root) {
     if (root == null) {
       root = d.body;
@@ -840,6 +828,20 @@
     return __slice.call(root.querySelectorAll(selector));
   };
 
+  Array.prototype.indexOf = function(val) {
+    var i;
+
+    i = this.length;
+    while (i--) {
+      if (this[i] === val) {
+        return i;
+      }
+    }
+    return i;
+  };
+
+  __indexOf = [].indexOf;
+
   Board = (function() {
     Board.prototype.toString = function() {
       return this.ID;

src/General/cheats.coffee

@@ -0,0 +1,10 @@
+# I am bad at JavaScript and if you reuse this, so are you.
+Array::indexOf = (val) ->
+  i = @length
+  while i--
+    return i if @[i] is val
+  return i
+
+# Update CoffeeScript's reference to [].indexOf
+# Reserved keywords are ignored in embedded javascript.
+`__indexOf = [].indexOf`

src/General/lib/$.coffee

@@ -1,9 +1,3 @@
-Array::indexOf = (val) ->
-  i = @length
-  while i--
-    return i if @[i] is val
-  return i
-
 # loosely follows the jquery api:
 # http://api.jquery.com/
 # not chainable