install gulp to process code

node_modules/kind-of/index.js

@@ -0,0 +1,45 @@
+var toString = Object.prototype.toString;
+
+/**
+ * Get the native `typeof` a value.
+ *
+ * @param  {*} `val`
+ * @return {*} Native javascript type
+ */
+
+module.exports = function kindOf(val) {
+  if (val === undefined) {
+    return 'undefined';
+  }
+  if (val === null) {
+    return 'null';
+  }
+  if (val === true || val === false || val instanceof Boolean) {
+    return 'boolean';
+  }
+  if (typeof val !== 'object') {
+    return typeof val;
+  }
+  if (Array.isArray(val)) {
+    return 'array';
+  }
+
+  var type = toString.call(val);
+
+  if (val instanceof RegExp || type === '[object RegExp]') {
+    return 'regexp';
+  }
+  if (val instanceof Date || type === '[object Date]') {
+    return 'date';
+  }
+  if (type === '[object Function]') {
+    return 'function';
+  }
+  if (type === '[object Arguments]') {
+    return 'arguments';
+  }
+  if (typeof Buffer !== 'undefined' && Buffer.isBuffer(val)) {
+    return 'buffer';
+  }
+  return type.slice(8, -1).toLowerCase();
+};