fix

book/node_modules/lunr/lib/utils.js

@@ -0,0 +1,24 @@
+/*!
+ * lunr.utils
+ * Copyright (C) @YEAR Oliver Nightingale
+ */
+
+/**
+ * A namespace containing utils for the rest of the lunr library
+ */
+lunr.utils = {}
+
+/**
+ * Print a warning message to the console.
+ *
+ * @param {String} message The message to be printed.
+ * @memberOf Utils
+ */
+lunr.utils.warn = (function (global) {
+  return function (message) {
+    if (global.console && console.warn) {
+      console.warn(message)
+    }
+  }
+})(this)
+