backbone.jsHow do I update a model in Backbone.js?
Updating a model in Backbone.js is done by using the set()
method. This method takes an object with the new model attributes as an argument. The following example code sets the name
attribute of a model to 'John Doe'
:
var myModel = new Backbone.Model({
name: 'Jane Doe'
});
myModel.set({name: 'John Doe'});
The set()
method triggers a change
event, which can be used to update the view associated with the model. The following example code logs the new name
attribute when the change
event is triggered:
myModel.on('change', function() {
console.log(myModel.get('name'));
});
// Output: John Doe
The set()
method can also take an options
object as an additional argument. The options
object can contain a silent
property, which if set to true
will prevent the change
event from being triggered.
The set()
method also takes a validate
property, which can be used to validate the new attributes before they are set on the model. If the validate
property is set to true
, the validate()
method of the model will be called before the attributes are set.
For more information, see the Backbone.js documentation.
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