前端代码

node_modules/async-each-series/index.js

@@ -0,0 +1,21 @@
+module.exports = function (arr, iterator, callback) {
+  callback = callback || function () {};
+  if (!Array.isArray(arr) || !arr.length) {
+      return callback();
+  }
+  var completed = 0;
+  var iterate = function () {
+    iterator(arr[completed], function (err) {
+      if (err) {
+        callback(err);
+        callback = function () {};
+      }
+      else {
+        ++completed;
+        if (completed >= arr.length) { callback(); }
+        else { iterate(); }
+      }
+    });
+  };
+  iterate();
+};