title: How to save collection of models in backbone.js?
body: <p>I am using backbone in a project. I have a scenario where I have added my multiple models in a collection. Now i have array of models in the collection. I am using rest serivces in order to save. Now I want to make a post call to the server to save those array of models. I know there is a method to pass model to create method of collection like <pre>this.collection.create(model)</pre> 
  But it is for single model to save. I had also tried to apply loop but it doesn't seem to work. Please help me out. </p>
  
  <p>Thanks in advance  </p>