Adding support for use on the web

Makefile

@@ -0,0 +1,5 @@
+default: min
+min:
+	uglifyjs -cm < index.js > autocast.min.js
+clean:
+	rm -f autocast.min.js

index.js

@@ -1,31 +1,40 @@
-/**
- * Common strings to cast
- */
-var common_strings = {
-  'true': true,
-  'false': false,
-  'undefined': undefined,
-  'null': null,
-  'NaN': NaN
-};
+(function() {
+  /**
+   * Common strings to cast
+   */
+  var common_strings = {
+    'true': true,
+    'false': false,
+    'undefined': undefined,
+    'null': null,
+    'NaN': NaN
+  };
 
-/**
- * Given a value, try and cast it
- */
-module.exports = function(s) {
-  var key;
+  /**
+   * Given a value, try and cast it
+   */
+  function autocast(s) {
+    var key;
 
-  // Don't cast Date objects
-  if (s instanceof Date) return s;
+    // Don't cast Date objects
+    if (s instanceof Date) return s;
 
-  // Try to cast it to a number
-  if ((key = +s) == key) return key;
+    // Try to cast it to a number
+    if ((key = +s) == key) return key;
 
-  // Try to make it a common string
-  for (key in common_strings) {
-    if (s === key) return common_strings[key];
-  }
+    // Try to make it a common string
+    for (key in common_strings) {
+      if (s === key) return common_strings[key];
+    }
+
+    // Give up
+    return s;
+  };
 
-  // Give up
-  return s;
-};
+  // export
+  if (typeof exports === 'undefined') {
+    window.autocast = autocast;
+  } else {
+    module.exports = autocast;
+  }
+}());