add book.js

node_modules/lodash/internal/getFuncName.js

@@ -0,0 +1,25 @@
+var realNames = require('./realNames');
+
+/**
+ * Gets the name of `func`.
+ *
+ * @private
+ * @param {Function} func The function to query.
+ * @returns {string} Returns the function name.
+ */
+function getFuncName(func) {
+  var result = (func.name + ''),
+      array = realNames[result],
+      length = array ? array.length : 0;
+
+  while (length--) {
+    var data = array[length],
+        otherFunc = data.func;
+    if (otherFunc == null || otherFunc == func) {
+      return data.name;
+    }
+  }
+  return result;
+}
+
+module.exports = getFuncName;