backbone.jsHow do I bind a model to a view in Backbone.js?
Backbone.js provides an easy way to bind models to views. The Backbone.View.extend()
function is used to create a view and the Backbone.Model.extend()
is used to create a model.
The render()
method is used to bind the model to the view. This method is called when the view is instantiated.
The following example shows how to bind a model to a view:
// Create model
var Person = Backbone.Model.extend({
defaults: {
name: '',
age: 0
}
});
// Create view
var PersonView = Backbone.View.extend({
el: '#person-container',
initialize: function() {
this.render();
},
render: function() {
this.$el.html(this.model.get('name') + ' is ' + this.model.get('age') + ' years old.');
}
});
// Create model instance
var person = new Person({ name: 'John', age: 25 });
// Create view instance
var personView = new PersonView({ model: person });
The output of the above code will be: John is 25 years old.
Code explanation
Backbone.Model.extend()
: Used to create a model.Backbone.View.extend()
: Used to create a view.render()
: Used to bind the model to the view.Person
: Model instance.PersonView
: View instance.this.model.get()
: Used to get the model properties.this.$el.html()
: Used to set the view HTML.
Helpful links
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