backbone.jsHow do I use a Backbone.js collection to manage data?

A Backbone.js collection is a JavaScript object that can be used to manage data. It provides an API for adding, removing, and fetching models from the collection. Here's an example of how to create a collection and add models to it:

var MyCollection = Backbone.Collection.extend({});
var myCollection = new MyCollection();

myCollection.add([
  {name: "John", age: 30},
  {name: "Jane", age: 25},
  {name: "Sam", age: 28}
]);

This code will create a new collection called MyCollection and add three models to it. The models will have two properties each - name and age.

You can then access the models in the collection using the get method. For example, to get the model with the name "John":

var johnModel = myCollection.get("John");
console.log(johnModel.get("age")); // 30

You can also use the each method to loop through all the models in the collection:

myCollection.each(function(model) {
  console.log(model.get("name"));
});

// John
// Jane
// Sam

You can find more information about Backbone.js collections in the official documentation.

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