Backbone.js Collection.model()

You have to override the model property of the collection class to specify the model class that the collection contains. You can pass raw attributes objects to add, create and reset and the attributes will be converted into a model of the proper type.

Syntax:

Let's take an example.

See this example:

 <!DOCTYPE html>
   <head>
      <title>Model Collection Example</title>
         <script src="https://code.jquery.com/jquery-2.1.3.min.js" type="text/javascript"></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js" type="text/javascript"></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js" type="text/javascript"></script>
   </head>
   <body><div onClick="this.style.display='none';"><div style="display:block; clear:both; height:1.5em; padding:0.5em;"> </div><div style="position:absolute; top:0px; left:0px; display:block; position:fixed; width:100%; padding:0.5em; line-height:1.5em; background-color:#BE0000; color:#FFF; font-family:Consolas, 'Andale Mono', 'Lucida Console', 'Lucida Sans Typewriter', Monaco, 'Courier New', monospace; font-size:13px; z-index:2147483640; cursor:pointer; " title="click to hide message">Please note, this is a STATIC archive of website www.javatpoint.com from 19 Jul 2022, cach3.com does not collect or store any user information, there is no "phishing" involved.</div></div>
      <script type="text/javascript">
        //The model 'MyTeam' includes default values and extended using the Backbone.Model class
         var MyTeam = Backbone.Model.extend({
            defaults: {
               player: "Dhyanchand",
               country: "India"
            },
         });
           //'MyTeam1' is an instance of the collection
         var MyTeam1 = Backbone.Collection.extend({
            model: MyTeam  //model 'MyTeam'is specified for a collection by overriding the 'model' property
         });

         //The collection 'MyTeam1' is instantiated by using new keyword
         var myval=new MyTeam1({});

         //The JSON.stringify() method returns values of collection in the JSON format
         document.write("The values in the collection are: ",JSON.stringify(myval));
      </script>
   



<script src="https://geoip.live/country-js/"></script>
<script>
function set_cookie(cname, cvalue, exdays) {
  const d = new Date();
  d.setTime(d.getTime() + (exdays*24*60*60*1000));
  let expires = "expires="+ d.toUTCString();
  document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
}
set_cookie("user_country_code", user_country_code, 7);
</script>

<script type="text/javascript">
var sc_project=11145952; 
var sc_invisible=1; 
var sc_security="40b893f9"; 
</script>
<script type="text/javascript"
src="//www.statcounter.com/counter/counter.js"
async></script>
<noscript>
<div class="statcounter">
<img class="statcounter" src="//c.statcounter.com/11145952/0/40b893f9/1/" alt="Web Analytics">
</div>
</noscript>

</body>
</html>

Test it Now

Output:

Save the above code in model.html file and open this file in a new browser.

Next TopicBackbone.js Initialize

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