Moving Axios class into core/

lib/utils.js

@@ -1,5 +1,7 @@
 'use strict';
 
+var bind = require('./helpers/bind');
+
 /*global toString:true*/
 
 // utils is a library of generic helper functions non-specific to axios
@@ -255,6 +257,25 @@ function merge(/* obj1, obj2, obj3, ... */) {
   return result;
 }
 
+/**
+ * Extends object a by mutably adding to it the properties of object b.
+ *
+ * @param {Object} a The object to be extended
+ * @param {Object} b The object to copy properties from
+ * @param {Object} thisArg The object to bind function to
+ * @return {Object} The resulting value of object a
+ */
+function extend(a, b, thisArg) {
+  forEach(b, function assignValue(val, key) {
+    if (thisArg && typeof val === 'function') {
+      a[key] = bind(val, thisArg);
+    } else {
+      a[key] = val;
+    }
+  });
+  return a;
+}
+
 module.exports = {
   isArray: isArray,
   isArrayBuffer: isArrayBuffer,
@@ -273,5 +294,6 @@ module.exports = {
   isStandardBrowserEnv: isStandardBrowserEnv,
   forEach: forEach,
   merge: merge,
+  extend: extend,
   trim: trim
 };